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Finding the Fourth Proportional to 104,655.28, 144,421.28 and 59,337.60

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Solution

The fourth proportional to 104,655.28, 144,421.28 and 59,337.60 is: 81,884.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,655.28 : 144,421.28 = 59,337.60 : x
  2. Step 2: Convert to fraction form
    104,655.28/144,421.28 = 59,337.60/x
  3. Step 3: Cross multiply
    104,655.28x = 144,421.28 × 59,337.60
  4. Step 4: Simplify right side
    104,655.28x = 8,569,612,144.13
  5. Step 5: Solve for x
    x = 8,569,612,144.13/104,655.28
  6. Step 6: Final answer
    x = 81,884.19

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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.