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Finding the Fourth Proportional to 124,795.40, 187,217.40 and 53,717.90

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Solution

The fourth proportional to 124,795.40, 187,217.40 and 53,717.90 is: 80,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,795.40 : 187,217.40 = 53,717.90 : x
  2. Step 2: Convert to fraction form
    124,795.40/187,217.40 = 53,717.90/x
  3. Step 3: Cross multiply
    124,795.40x = 187,217.40 × 53,717.90
  4. Step 4: Simplify right side
    124,795.40x = 10,056,925,571.46
  5. Step 5: Solve for x
    x = 10,056,925,571.46/124,795.40
  6. Step 6: Final answer
    x = 80,587.31

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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.