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Finding the Fourth Proportional to 238,605.90, 329,256.56 and 140,473.56

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Solution

The fourth proportional to 238,605.90, 329,256.56 and 140,473.56 is: 193,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,605.90 : 329,256.56 = 140,473.56 : x
  2. Step 2: Convert to fraction form
    238,605.90/329,256.56 = 140,473.56/x
  3. Step 3: Cross multiply
    238,605.90x = 329,256.56 × 140,473.56
  4. Step 4: Simplify right side
    238,605.90x = 46,251,841,136.55
  5. Step 5: Solve for x
    x = 46,251,841,136.55/238,605.90
  6. Step 6: Final answer
    x = 193,841.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.