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Finding the Fourth Proportional to 125,237.80, 172,824.42 and 68,647.24

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Solution

The fourth proportional to 125,237.80, 172,824.42 and 68,647.24 is: 94,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,237.80 : 172,824.42 = 68,647.24 : x
  2. Step 2: Convert to fraction form
    125,237.80/172,824.42 = 68,647.24/x
  3. Step 3: Cross multiply
    125,237.80x = 172,824.42 × 68,647.24
  4. Step 4: Simplify right side
    125,237.80x = 11,863,919,437.60
  5. Step 5: Solve for x
    x = 11,863,919,437.60/125,237.80
  6. Step 6: Final answer
    x = 94,731.14

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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.