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Finding the Fourth Proportional to 125,093.03, 172,627.08 and 67,731.36

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Solution

The fourth proportional to 125,093.03, 172,627.08 and 67,731.36 is: 93,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,093.03 : 172,627.08 = 67,731.36 : x
  2. Step 2: Convert to fraction form
    125,093.03/172,627.08 = 67,731.36/x
  3. Step 3: Cross multiply
    125,093.03x = 172,627.08 × 67,731.36
  4. Step 4: Simplify right side
    125,093.03x = 11,692,266,901.23
  5. Step 5: Solve for x
    x = 11,692,266,901.23/125,093.03
  6. Step 6: Final answer
    x = 93,468.58

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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.