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Finding the Fourth Proportional to 125,547.47, 173,255.51 and 68,958.84

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Solution

The fourth proportional to 125,547.47, 173,255.51 and 68,958.84 is: 95,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,547.47 : 173,255.51 = 68,958.84 : x
  2. Step 2: Convert to fraction form
    125,547.47/173,255.51 = 68,958.84/x
  3. Step 3: Cross multiply
    125,547.47x = 173,255.51 × 68,958.84
  4. Step 4: Simplify right side
    125,547.47x = 11,947,499,427.42
  5. Step 5: Solve for x
    x = 11,947,499,427.42/125,547.47
  6. Step 6: Final answer
    x = 95,163.20

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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.