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Finding the Fourth Proportional to 161,677.80, 242,516.70 and 159,053.40

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Solution

The fourth proportional to 161,677.80, 242,516.70 and 159,053.40 is: 238,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,677.80 : 242,516.70 = 159,053.40 : x
  2. Step 2: Convert to fraction form
    161,677.80/242,516.70 = 159,053.40/x
  3. Step 3: Cross multiply
    161,677.80x = 242,516.70 × 159,053.40
  4. Step 4: Simplify right side
    161,677.80x = 38,573,105,691.78
  5. Step 5: Solve for x
    x = 38,573,105,691.78/161,677.80
  6. Step 6: Final answer
    x = 238,580.10

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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.