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Finding the Fourth Proportional to 359,042.46, 538,562.06 and 92,780.34

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Solution

The fourth proportional to 359,042.46, 538,562.06 and 92,780.34 is: 139,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,042.46 : 538,562.06 = 92,780.34 : x
  2. Step 2: Convert to fraction form
    359,042.46/538,562.06 = 92,780.34/x
  3. Step 3: Cross multiply
    359,042.46x = 538,562.06 × 92,780.34
  4. Step 4: Simplify right side
    359,042.46x = 49,967,971,037.90
  5. Step 5: Solve for x
    x = 49,967,971,037.90/359,042.46
  6. Step 6: Final answer
    x = 139,170.09

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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.