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Finding the Fourth Proportional to 73,565.92, 110,459.57 and 42,011.60

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Solution

The fourth proportional to 73,565.92, 110,459.57 and 42,011.60 is: 63,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,565.92 : 110,459.57 = 42,011.60 : x
  2. Step 2: Convert to fraction form
    73,565.92/110,459.57 = 42,011.60/x
  3. Step 3: Cross multiply
    73,565.92x = 110,459.57 × 42,011.60
  4. Step 4: Simplify right side
    73,565.92x = 4,640,582,508.66
  5. Step 5: Solve for x
    x = 4,640,582,508.66/73,565.92
  6. Step 6: Final answer
    x = 63,080.60

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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.