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Finding the Fourth Proportional to 354,799.64, 532,365.55 and 155,094.21

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Solution

The fourth proportional to 354,799.64, 532,365.55 and 155,094.21 is: 232,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,799.64 : 532,365.55 = 155,094.21 : x
  2. Step 2: Convert to fraction form
    354,799.64/532,365.55 = 155,094.21/x
  3. Step 3: Cross multiply
    354,799.64x = 532,365.55 × 155,094.21
  4. Step 4: Simplify right side
    354,799.64x = 82,566,814,020.73
  5. Step 5: Solve for x
    x = 82,566,814,020.73/354,799.64
  6. Step 6: Final answer
    x = 232,713.92

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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.