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Finding the Fourth Proportional to 70,048,801.60, 105,073,202.40 and 43,174,945.60

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Solution

The fourth proportional to 70,048,801.60, 105,073,202.40 and 43,174,945.60 is: 64,762,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,048,801.60 : 105,073,202.40 = 43,174,945.60 : x
  2. Step 2: Convert to fraction form
    70,048,801.60/105,073,202.40 = 43,174,945.60/x
  3. Step 3: Cross multiply
    70,048,801.60x = 105,073,202.40 × 43,174,945.60
  4. Step 4: Simplify right side
    70,048,801.60x = 4,536,529,797,637,790
  5. Step 5: Solve for x
    x = 4,536,529,797,637,790/70,048,801.60
  6. Step 6: Final answer
    x = 64,762,418.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.