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Finding the Fourth Proportional to 125,325.18, 172,948.80 and 67,964.48

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Solution

The fourth proportional to 125,325.18, 172,948.80 and 67,964.48 is: 93,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,325.18 : 172,948.80 = 67,964.48 : x
  2. Step 2: Convert to fraction form
    125,325.18/172,948.80 = 67,964.48/x
  3. Step 3: Cross multiply
    125,325.18x = 172,948.80 × 67,964.48
  4. Step 4: Simplify right side
    125,325.18x = 11,754,375,258.62
  5. Step 5: Solve for x
    x = 11,754,375,258.62/125,325.18
  6. Step 6: Final answer
    x = 93,791.01

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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.