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Finding the Fourth Proportional to 125,842.51, 173,662.56 and 69,253.88

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Solution

The fourth proportional to 125,842.51, 173,662.56 and 69,253.88 is: 95,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,842.51 : 173,662.56 = 69,253.88 : x
  2. Step 2: Convert to fraction form
    125,842.51/173,662.56 = 69,253.88/x
  3. Step 3: Cross multiply
    125,842.51x = 173,662.56 × 69,253.88
  4. Step 4: Simplify right side
    125,842.51x = 12,026,806,090.73
  5. Step 5: Solve for x
    x = 12,026,806,090.73/125,842.51
  6. Step 6: Final answer
    x = 95,570.30

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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.