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Finding the Fourth Proportional to 176,366.30, 264,639.89 and 86,407.29

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Solution

The fourth proportional to 176,366.30, 264,639.89 and 86,407.29 is: 129,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,366.30 : 264,639.89 = 86,407.29 : x
  2. Step 2: Convert to fraction form
    176,366.30/264,639.89 = 86,407.29/x
  3. Step 3: Cross multiply
    176,366.30x = 264,639.89 × 86,407.29
  4. Step 4: Simplify right side
    176,366.30x = 22,866,815,936.82
  5. Step 5: Solve for x
    x = 22,866,815,936.82/176,366.30
  6. Step 6: Final answer
    x = 129,655.25

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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.