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Finding the Fourth Proportional to 124,699.97, 187,124.48 and 45,822.17

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Solution

The fourth proportional to 124,699.97, 187,124.48 and 45,822.17 is: 68,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,699.97 : 187,124.48 = 45,822.17 : x
  2. Step 2: Convert to fraction form
    124,699.97/187,124.48 = 45,822.17/x
  3. Step 3: Cross multiply
    124,699.97x = 187,124.48 × 45,822.17
  4. Step 4: Simplify right side
    124,699.97x = 8,574,449,504.61
  5. Step 5: Solve for x
    x = 8,574,449,504.61/124,699.97
  6. Step 6: Final answer
    x = 68,760.64

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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.