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Finding the Fourth Proportional to 296,841.66, 445,267.35 and 86,491.14

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Solution

The fourth proportional to 296,841.66, 445,267.35 and 86,491.14 is: 129,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,841.66 : 445,267.35 = 86,491.14 : x
  2. Step 2: Convert to fraction form
    296,841.66/445,267.35 = 86,491.14/x
  3. Step 3: Cross multiply
    296,841.66x = 445,267.35 × 86,491.14
  4. Step 4: Simplify right side
    296,841.66x = 38,511,680,706.28
  5. Step 5: Solve for x
    x = 38,511,680,706.28/296,841.66
  6. Step 6: Final answer
    x = 129,738.13

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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.