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Finding the Fourth Proportional to 98,351.59, 135,724.57 and 55,910.13

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Solution

The fourth proportional to 98,351.59, 135,724.57 and 55,910.13 is: 77,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,351.59 : 135,724.57 = 55,910.13 : x
  2. Step 2: Convert to fraction form
    98,351.59/135,724.57 = 55,910.13/x
  3. Step 3: Cross multiply
    98,351.59x = 135,724.57 × 55,910.13
  4. Step 4: Simplify right side
    98,351.59x = 7,588,378,352.89
  5. Step 5: Solve for x
    x = 7,588,378,352.89/98,351.59
  6. Step 6: Final answer
    x = 77,155.62

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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.