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Finding the Fourth Proportional to 125,094.78, 172,629.49 and 67,733.11

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Solution

The fourth proportional to 125,094.78, 172,629.49 and 67,733.11 is: 93,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,094.78 : 172,629.49 = 67,733.11 : x
  2. Step 2: Convert to fraction form
    125,094.78/172,629.49 = 67,733.11/x
  3. Step 3: Cross multiply
    125,094.78x = 172,629.49 × 67,733.11
  4. Step 4: Simplify right side
    125,094.78x = 11,692,732,235.41
  5. Step 5: Solve for x
    x = 11,692,732,235.41/125,094.78
  6. Step 6: Final answer
    x = 93,470.98

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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.