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Finding the Fourth Proportional to 193,909.52, 290,566.20 and 114,866.48

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Solution

The fourth proportional to 193,909.52, 290,566.20 and 114,866.48 is: 172,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,909.52 : 290,566.20 = 114,866.48 : x
  2. Step 2: Convert to fraction form
    193,909.52/290,566.20 = 114,866.48/x
  3. Step 3: Cross multiply
    193,909.52x = 290,566.20 × 114,866.48
  4. Step 4: Simplify right side
    193,909.52x = 33,376,316,600.98
  5. Step 5: Solve for x
    x = 33,376,316,600.98/193,909.52
  6. Step 6: Final answer
    x = 172,123.15

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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.