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Finding the Fourth Proportional to 144,954.40, 217,431.60 and 70,110.40

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Solution

The fourth proportional to 144,954.40, 217,431.60 and 70,110.40 is: 105,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,954.40 : 217,431.60 = 70,110.40 : x
  2. Step 2: Convert to fraction form
    144,954.40/217,431.60 = 70,110.40/x
  3. Step 3: Cross multiply
    144,954.40x = 217,431.60 × 70,110.40
  4. Step 4: Simplify right side
    144,954.40x = 15,244,216,448.64
  5. Step 5: Solve for x
    x = 15,244,216,448.64/144,954.40
  6. Step 6: Final answer
    x = 105,165.60

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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.