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Finding the Fourth Proportional to 98,247.61, 135,581.68 and 53,535.61

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Solution

The fourth proportional to 98,247.61, 135,581.68 and 53,535.61 is: 73,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,247.61 : 135,581.68 = 53,535.61 : x
  2. Step 2: Convert to fraction form
    98,247.61/135,581.68 = 53,535.61/x
  3. Step 3: Cross multiply
    98,247.61x = 135,581.68 × 53,535.61
  4. Step 4: Simplify right side
    98,247.61x = 7,258,447,943.62
  5. Step 5: Solve for x
    x = 7,258,447,943.62/98,247.61
  6. Step 6: Final answer
    x = 73,879.13

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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.