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Finding the Fourth Proportional to 177,871.70, 266,721.15 and 98,902.10

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Solution

The fourth proportional to 177,871.70, 266,721.15 and 98,902.10 is: 148,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,871.70 : 266,721.15 = 98,902.10 : x
  2. Step 2: Convert to fraction form
    177,871.70/266,721.15 = 98,902.10/x
  3. Step 3: Cross multiply
    177,871.70x = 266,721.15 × 98,902.10
  4. Step 4: Simplify right side
    177,871.70x = 26,379,281,849.42
  5. Step 5: Solve for x
    x = 26,379,281,849.42/177,871.70
  6. Step 6: Final answer
    x = 148,305.11

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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.