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Finding the Fourth Proportional to 122,540.68, 183,552.69 and 56,036.78

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Solution

The fourth proportional to 122,540.68, 183,552.69 and 56,036.78 is: 83,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,540.68 : 183,552.69 = 56,036.78 : x
  2. Step 2: Convert to fraction form
    122,540.68/183,552.69 = 56,036.78/x
  3. Step 3: Cross multiply
    122,540.68x = 183,552.69 × 56,036.78
  4. Step 4: Simplify right side
    122,540.68x = 10,285,700,790.17
  5. Step 5: Solve for x
    x = 10,285,700,790.17/122,540.68
  6. Step 6: Final answer
    x = 83,937.03

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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.