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Finding the Fourth Proportional to 292,483.80, 438,861.78 and 132,531.48

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Solution

The fourth proportional to 292,483.80, 438,861.78 and 132,531.48 is: 198,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,483.80 : 438,861.78 = 132,531.48 : x
  2. Step 2: Convert to fraction form
    292,483.80/438,861.78 = 132,531.48/x
  3. Step 3: Cross multiply
    292,483.80x = 438,861.78 × 132,531.48
  4. Step 4: Simplify right side
    292,483.80x = 58,163,001,218.83
  5. Step 5: Solve for x
    x = 58,163,001,218.83/292,483.80
  6. Step 6: Final answer
    x = 198,858.88

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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.