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Finding the Fourth Proportional to 122,598.92, 183,893.37 and 42,655.17

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Solution

The fourth proportional to 122,598.92, 183,893.37 and 42,655.17 is: 63,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,598.92 : 183,893.37 = 42,655.17 : x
  2. Step 2: Convert to fraction form
    122,598.92/183,893.37 = 42,655.17/x
  3. Step 3: Cross multiply
    122,598.92x = 183,893.37 × 42,655.17
  4. Step 4: Simplify right side
    122,598.92x = 7,844,002,959.22
  5. Step 5: Solve for x
    x = 7,844,002,959.22/122,598.92
  6. Step 6: Final answer
    x = 63,981.01

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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.