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Finding the Fourth Proportional to 96,387.20, 133,051.20 and 58,659.20

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Solution

The fourth proportional to 96,387.20, 133,051.20 and 58,659.20 is: 80,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,387.20 : 133,051.20 = 58,659.20 : x
  2. Step 2: Convert to fraction form
    96,387.20/133,051.20 = 58,659.20/x
  3. Step 3: Cross multiply
    96,387.20x = 133,051.20 × 58,659.20
  4. Step 4: Simplify right side
    96,387.20x = 7,804,676,951.04
  5. Step 5: Solve for x
    x = 7,804,676,951.04/96,387.20
  6. Step 6: Final answer
    x = 80,972.13

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1.5x scale

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.