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Finding the Fourth Proportional to 115,878.81, 173,882.80 and 62,569.66

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Solution

The fourth proportional to 115,878.81, 173,882.80 and 62,569.66 is: 93,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,878.81 : 173,882.80 = 62,569.66 : x
  2. Step 2: Convert to fraction form
    115,878.81/173,882.80 = 62,569.66/x
  3. Step 3: Cross multiply
    115,878.81x = 173,882.80 × 62,569.66
  4. Step 4: Simplify right side
    115,878.81x = 10,879,787,675.85
  5. Step 5: Solve for x
    x = 10,879,787,675.85/115,878.81
  6. Step 6: Final answer
    x = 93,889.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.