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Finding the Fourth Proportional to 73,359.60, 109,909.80 and 60,140.40

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Solution

The fourth proportional to 73,359.60, 109,909.80 and 60,140.40 is: 90,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,359.60 : 109,909.80 = 60,140.40 : x
  2. Step 2: Convert to fraction form
    73,359.60/109,909.80 = 60,140.40/x
  3. Step 3: Cross multiply
    73,359.60x = 109,909.80 × 60,140.40
  4. Step 4: Simplify right side
    73,359.60x = 6,610,019,335.92
  5. Step 5: Solve for x
    x = 6,610,019,335.92/73,359.60
  6. Step 6: Final answer
    x = 90,104.35

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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.