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Finding the Fourth Proportional to 338,503.52, 507,473.87 and 158,500.43

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Solution

The fourth proportional to 338,503.52, 507,473.87 and 158,500.43 is: 237,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,503.52 : 507,473.87 = 158,500.43 : x
  2. Step 2: Convert to fraction form
    338,503.52/507,473.87 = 158,500.43/x
  3. Step 3: Cross multiply
    338,503.52x = 507,473.87 × 158,500.43
  4. Step 4: Simplify right side
    338,503.52x = 80,434,828,437.28
  5. Step 5: Solve for x
    x = 80,434,828,437.28/338,503.52
  6. Step 6: Final answer
    x = 237,618.88

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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.