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Finding the Fourth Proportional to 60,565.80, 90,864.90 and 43,069.80

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Solution

The fourth proportional to 60,565.80, 90,864.90 and 43,069.80 is: 64,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,565.80 : 90,864.90 = 43,069.80 : x
  2. Step 2: Convert to fraction form
    60,565.80/90,864.90 = 43,069.80/x
  3. Step 3: Cross multiply
    60,565.80x = 90,864.90 × 43,069.80
  4. Step 4: Simplify right side
    60,565.80x = 3,913,533,070.02
  5. Step 5: Solve for x
    x = 3,913,533,070.02/60,565.80
  6. Step 6: Final answer
    x = 64,616.22

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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.