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Finding the Fourth Proportional to 374,505.48, 561,702.94 and 137,793.11

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Solution

The fourth proportional to 374,505.48, 561,702.94 and 137,793.11 is: 206,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,505.48 : 561,702.94 = 137,793.11 : x
  2. Step 2: Convert to fraction form
    374,505.48/561,702.94 = 137,793.11/x
  3. Step 3: Cross multiply
    374,505.48x = 561,702.94 × 137,793.11
  4. Step 4: Simplify right side
    374,505.48x = 77,398,791,845.75
  5. Step 5: Solve for x
    x = 77,398,791,845.75/374,505.48
  6. Step 6: Final answer
    x = 206,669.32

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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.