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Finding the Fourth Proportional to 359,131.54, 538,856.01 and 188,312.47

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Solution

The fourth proportional to 359,131.54, 538,856.01 and 188,312.47 is: 282,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,131.54 : 538,856.01 = 188,312.47 : x
  2. Step 2: Convert to fraction form
    359,131.54/538,856.01 = 188,312.47/x
  3. Step 3: Cross multiply
    359,131.54x = 538,856.01 × 188,312.47
  4. Step 4: Simplify right side
    359,131.54x = 101,473,306,217.45
  5. Step 5: Solve for x
    x = 101,473,306,217.45/359,131.54
  6. Step 6: Final answer
    x = 282,551.92

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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.