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Finding the Fourth Proportional to 125,547.56, 173,256.72 and 68,960.24

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Solution

The fourth proportional to 125,547.56, 173,256.72 and 68,960.24 is: 95,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,547.56 : 173,256.72 = 68,960.24 : x
  2. Step 2: Convert to fraction form
    125,547.56/173,256.72 = 68,960.24/x
  3. Step 3: Cross multiply
    125,547.56x = 173,256.72 × 68,960.24
  4. Step 4: Simplify right side
    125,547.56x = 11,947,824,992.81
  5. Step 5: Solve for x
    x = 11,947,824,992.81/125,547.56
  6. Step 6: Final answer
    x = 95,165.73

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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.