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Finding the Fourth Proportional to 124,793.40, 187,214.40 and 53,715.90

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Solution

The fourth proportional to 124,793.40, 187,214.40 and 53,715.90 is: 80,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,793.40 : 187,214.40 = 53,715.90 : x
  2. Step 2: Convert to fraction form
    124,793.40/187,214.40 = 53,715.90/x
  3. Step 3: Cross multiply
    124,793.40x = 187,214.40 × 53,715.90
  4. Step 4: Simplify right side
    124,793.40x = 10,056,389,988.96
  5. Step 5: Solve for x
    x = 10,056,389,988.96/124,793.40
  6. Step 6: Final answer
    x = 80,584.31

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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.