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Finding the Fourth Proportional to 176,591.10, 265,032.45 and 81,966.90

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Solution

The fourth proportional to 176,591.10, 265,032.45 and 81,966.90 is: 123,018.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,591.10 : 265,032.45 = 81,966.90 : x
  2. Step 2: Convert to fraction form
    176,591.10/265,032.45 = 81,966.90/x
  3. Step 3: Cross multiply
    176,591.10x = 265,032.45 × 81,966.90
  4. Step 4: Simplify right side
    176,591.10x = 21,723,888,325.91
  5. Step 5: Solve for x
    x = 21,723,888,325.91/176,591.10
  6. Step 6: Final answer
    x = 123,018.02

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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.