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Finding the Fourth Proportional to 62,381.16, 86,106.51 and 49,657.68

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Solution

The fourth proportional to 62,381.16, 86,106.51 and 49,657.68 is: 68,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,381.16 : 86,106.51 = 49,657.68 : x
  2. Step 2: Convert to fraction form
    62,381.16/86,106.51 = 49,657.68/x
  3. Step 3: Cross multiply
    62,381.16x = 86,106.51 × 49,657.68
  4. Step 4: Simplify right side
    62,381.16x = 4,275,849,519.50
  5. Step 5: Solve for x
    x = 4,275,849,519.50/62,381.16
  6. Step 6: Final answer
    x = 68,543.92

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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.