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Finding the Fourth Proportional to 110,418.66, 152,378.46 and 62,672.81

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Solution

The fourth proportional to 110,418.66, 152,378.46 and 62,672.81 is: 86,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,418.66 : 152,378.46 = 62,672.81 : x
  2. Step 2: Convert to fraction form
    110,418.66/152,378.46 = 62,672.81/x
  3. Step 3: Cross multiply
    110,418.66x = 152,378.46 × 62,672.81
  4. Step 4: Simplify right side
    110,418.66x = 9,549,985,509.78
  5. Step 5: Solve for x
    x = 9,549,985,509.78/110,418.66
  6. Step 6: Final answer
    x = 86,488.87

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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.