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Finding the Fourth Proportional to 159,553.92, 220,184.82 and 86,957.40

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Solution

The fourth proportional to 159,553.92, 220,184.82 and 86,957.40 is: 120,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,553.92 : 220,184.82 = 86,957.40 : x
  2. Step 2: Convert to fraction form
    159,553.92/220,184.82 = 86,957.40/x
  3. Step 3: Cross multiply
    159,553.92x = 220,184.82 × 86,957.40
  4. Step 4: Simplify right side
    159,553.92x = 19,146,699,466.67
  5. Step 5: Solve for x
    x = 19,146,699,466.67/159,553.92
  6. Step 6: Final answer
    x = 120,001.44

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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.