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Finding the Fourth Proportional to 70,178.72, 96,866.16 and 43,325.60

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Solution

The fourth proportional to 70,178.72, 96,866.16 and 43,325.60 is: 59,801.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.72 : 96,866.16 = 43,325.60 : x
  2. Step 2: Convert to fraction form
    70,178.72/96,866.16 = 43,325.60/x
  3. Step 3: Cross multiply
    70,178.72x = 96,866.16 × 43,325.60
  4. Step 4: Simplify right side
    70,178.72x = 4,196,784,501.70
  5. Step 5: Solve for x
    x = 4,196,784,501.70/70,178.72
  6. Step 6: Final answer
    x = 59,801.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.