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Finding the Fourth Proportional to 98,350.59, 135,723.20 and 55,909.13

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Solution

The fourth proportional to 98,350.59, 135,723.20 and 55,909.13 is: 77,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,350.59 : 135,723.20 = 55,909.13 : x
  2. Step 2: Convert to fraction form
    98,350.59/135,723.20 = 55,909.13/x
  3. Step 3: Cross multiply
    98,350.59x = 135,723.20 × 55,909.13
  4. Step 4: Simplify right side
    98,350.59x = 7,588,165,074.65
  5. Step 5: Solve for x
    x = 7,588,165,074.65/98,350.59
  6. Step 6: Final answer
    x = 77,154.24

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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.