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Finding the Fourth Proportional to 303,031.80, 418,091.22 and 175,681.98

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Solution

The fourth proportional to 303,031.80, 418,091.22 and 175,681.98 is: 242,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,031.80 : 418,091.22 = 175,681.98 : x
  2. Step 2: Convert to fraction form
    303,031.80/418,091.22 = 175,681.98/x
  3. Step 3: Cross multiply
    303,031.80x = 418,091.22 × 175,681.98
  4. Step 4: Simplify right side
    303,031.80x = 73,451,092,691.41
  5. Step 5: Solve for x
    x = 73,451,092,691.41/303,031.80
  6. Step 6: Final answer
    x = 242,387.41

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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.