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Finding the Fourth Proportional to 136,499.68, 204,790.16 and 98,634.52

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Solution

The fourth proportional to 136,499.68, 204,790.16 and 98,634.52 is: 147,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,499.68 : 204,790.16 = 98,634.52 : x
  2. Step 2: Convert to fraction form
    136,499.68/204,790.16 = 98,634.52/x
  3. Step 3: Cross multiply
    136,499.68x = 204,790.16 × 98,634.52
  4. Step 4: Simplify right side
    136,499.68x = 20,199,379,132.32
  5. Step 5: Solve for x
    x = 20,199,379,132.32/136,499.68
  6. Step 6: Final answer
    x = 147,981.15

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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.