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Finding the Fourth Proportional to 242,042.20, 363,136.20 and 172,058.20

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Solution

The fourth proportional to 242,042.20, 363,136.20 and 172,058.20 is: 258,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,042.20 : 363,136.20 = 172,058.20 : x
  2. Step 2: Convert to fraction form
    242,042.20/363,136.20 = 172,058.20/x
  3. Step 3: Cross multiply
    242,042.20x = 363,136.20 × 172,058.20
  4. Step 4: Simplify right side
    242,042.20x = 62,480,560,926.84
  5. Step 5: Solve for x
    x = 62,480,560,926.84/242,042.20
  6. Step 6: Final answer
    x = 258,139.12

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1.5x scale

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.