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Finding the Fourth Proportional to 542,365.39, 813,539.02 and 132,039.02

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Solution

The fourth proportional to 542,365.39, 813,539.02 and 132,039.02 is: 198,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,365.39 : 813,539.02 = 132,039.02 : x
  2. Step 2: Convert to fraction form
    542,365.39/813,539.02 = 132,039.02/x
  3. Step 3: Cross multiply
    542,365.39x = 813,539.02 × 132,039.02
  4. Step 4: Simplify right side
    542,365.39x = 107,418,897,502.82
  5. Step 5: Solve for x
    x = 107,418,897,502.82/542,365.39
  6. Step 6: Final answer
    x = 198,056.33

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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.