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Finding the Fourth Proportional to 114,849.71, 158,479.90 and 68,906.91

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Solution

The fourth proportional to 114,849.71, 158,479.90 and 68,906.91 is: 95,083.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,849.71 : 158,479.90 = 68,906.91 : x
  2. Step 2: Convert to fraction form
    114,849.71/158,479.90 = 68,906.91/x
  3. Step 3: Cross multiply
    114,849.71x = 158,479.90 × 68,906.91
  4. Step 4: Simplify right side
    114,849.71x = 10,920,360,206.11
  5. Step 5: Solve for x
    x = 10,920,360,206.11/114,849.71
  6. Step 6: Final answer
    x = 95,083.92

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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.