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Finding the Fourth Proportional to 125,235.06, 172,824.98 and 67,874.37

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Solution

The fourth proportional to 125,235.06, 172,824.98 and 67,874.37 is: 93,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,235.06 : 172,824.98 = 67,874.37 : x
  2. Step 2: Convert to fraction form
    125,235.06/172,824.98 = 67,874.37/x
  3. Step 3: Cross multiply
    125,235.06x = 172,824.98 × 67,874.37
  4. Step 4: Simplify right side
    125,235.06x = 11,730,386,032.09
  5. Step 5: Solve for x
    x = 11,730,386,032.09/125,235.06
  6. Step 6: Final answer
    x = 93,666.95

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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.