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Finding the Fourth Proportional to 110,802.32, 152,919.24 and 68,359.76

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Solution

The fourth proportional to 110,802.32, 152,919.24 and 68,359.76 is: 94,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,802.32 : 152,919.24 = 68,359.76 : x
  2. Step 2: Convert to fraction form
    110,802.32/152,919.24 = 68,359.76/x
  3. Step 3: Cross multiply
    110,802.32x = 152,919.24 × 68,359.76
  4. Step 4: Simplify right side
    110,802.32x = 10,453,522,545.78
  5. Step 5: Solve for x
    x = 10,453,522,545.78/110,802.32
  6. Step 6: Final answer
    x = 94,343.90

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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.