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Finding the Fourth Proportional to 371,572.80, 557,294.40 and 134,793.60

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Solution

The fourth proportional to 371,572.80, 557,294.40 and 134,793.60 is: 202,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,572.80 : 557,294.40 = 134,793.60 : x
  2. Step 2: Convert to fraction form
    371,572.80/557,294.40 = 134,793.60/x
  3. Step 3: Cross multiply
    371,572.80x = 557,294.40 × 134,793.60
  4. Step 4: Simplify right side
    371,572.80x = 75,119,718,435.84
  5. Step 5: Solve for x
    x = 75,119,718,435.84/371,572.80
  6. Step 6: Final answer
    x = 202,166.89

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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.