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Finding the Fourth Proportional to 268,061.60, 402,092.40 and 256,251.80

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Solution

The fourth proportional to 268,061.60, 402,092.40 and 256,251.80 is: 384,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,061.60 : 402,092.40 = 256,251.80 : x
  2. Step 2: Convert to fraction form
    268,061.60/402,092.40 = 256,251.80/x
  3. Step 3: Cross multiply
    268,061.60x = 402,092.40 × 256,251.80
  4. Step 4: Simplify right side
    268,061.60x = 103,036,901,266.32
  5. Step 5: Solve for x
    x = 103,036,901,266.32/268,061.60
  6. Step 6: Final answer
    x = 384,377.70

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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.