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Finding the Fourth Proportional to 125,159.34, 172,724.04 and 68,574.36

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Solution

The fourth proportional to 125,159.34, 172,724.04 and 68,574.36 is: 94,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,159.34 : 172,724.04 = 68,574.36 : x
  2. Step 2: Convert to fraction form
    125,159.34/172,724.04 = 68,574.36/x
  3. Step 3: Cross multiply
    125,159.34x = 172,724.04 × 68,574.36
  4. Step 4: Simplify right side
    125,159.34x = 11,844,440,499.61
  5. Step 5: Solve for x
    x = 11,844,440,499.61/125,159.34
  6. Step 6: Final answer
    x = 94,634.89

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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.