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Finding the Fourth Proportional to 125,843.68, 173,664.18 and 69,255.10

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Solution

The fourth proportional to 125,843.68, 173,664.18 and 69,255.10 is: 95,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,843.68 : 173,664.18 = 69,255.10 : x
  2. Step 2: Convert to fraction form
    125,843.68/173,664.18 = 69,255.10/x
  3. Step 3: Cross multiply
    125,843.68x = 173,664.18 × 69,255.10
  4. Step 4: Simplify right side
    125,843.68x = 12,027,130,152.32
  5. Step 5: Solve for x
    x = 12,027,130,152.32/125,843.68
  6. Step 6: Final answer
    x = 95,571.98

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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.