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Finding the Fourth Proportional to 125,679.13, 173,426.90 and 73,988.02

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Solution

The fourth proportional to 125,679.13, 173,426.90 and 73,988.02 is: 102,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,679.13 : 173,426.90 = 73,988.02 : x
  2. Step 2: Convert to fraction form
    125,679.13/173,426.90 = 73,988.02/x
  3. Step 3: Cross multiply
    125,679.13x = 173,426.90 × 73,988.02
  4. Step 4: Simplify right side
    125,679.13x = 12,831,512,792.58
  5. Step 5: Solve for x
    x = 12,831,512,792.58/125,679.13
  6. Step 6: Final answer
    x = 102,097.41

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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.