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Finding the Fourth Proportional to 125,809.56, 173,619.84 and 69,221.04

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Solution

The fourth proportional to 125,809.56, 173,619.84 and 69,221.04 is: 95,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,809.56 : 173,619.84 = 69,221.04 : x
  2. Step 2: Convert to fraction form
    125,809.56/173,619.84 = 69,221.04/x
  3. Step 3: Cross multiply
    125,809.56x = 173,619.84 × 69,221.04
  4. Step 4: Simplify right side
    125,809.56x = 12,018,145,889.43
  5. Step 5: Solve for x
    x = 12,018,145,889.43/125,809.56
  6. Step 6: Final answer
    x = 95,526.49

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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.