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Finding the Fourth Proportional to 221,737.80, 332,606.70 and 63,971.40

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Solution

The fourth proportional to 221,737.80, 332,606.70 and 63,971.40 is: 95,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,737.80 : 332,606.70 = 63,971.40 : x
  2. Step 2: Convert to fraction form
    221,737.80/332,606.70 = 63,971.40/x
  3. Step 3: Cross multiply
    221,737.80x = 332,606.70 × 63,971.40
  4. Step 4: Simplify right side
    221,737.80x = 21,277,316,248.38
  5. Step 5: Solve for x
    x = 21,277,316,248.38/221,737.80
  6. Step 6: Final answer
    x = 95,957.10

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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.