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Finding the Fourth Proportional to 125,127.14, 172,677.69 and 68,534.87

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Solution

The fourth proportional to 125,127.14, 172,677.69 and 68,534.87 is: 94,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.14 : 172,677.69 = 68,534.87 : x
  2. Step 2: Convert to fraction form
    125,127.14/172,677.69 = 68,534.87/x
  3. Step 3: Cross multiply
    125,127.14x = 172,677.69 × 68,534.87
  4. Step 4: Simplify right side
    125,127.14x = 11,834,442,172.66
  5. Step 5: Solve for x
    x = 11,834,442,172.66/125,127.14
  6. Step 6: Final answer
    x = 94,579.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.