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Finding the Fourth Proportional to 91,656.93, 137,498.61 and 34,751.80

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Solution

The fourth proportional to 91,656.93, 137,498.61 and 34,751.80 is: 52,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,656.93 : 137,498.61 = 34,751.80 : x
  2. Step 2: Convert to fraction form
    91,656.93/137,498.61 = 34,751.80/x
  3. Step 3: Cross multiply
    91,656.93x = 137,498.61 × 34,751.80
  4. Step 4: Simplify right side
    91,656.93x = 4,778,324,497.19
  5. Step 5: Solve for x
    x = 4,778,324,497.19/91,656.93
  6. Step 6: Final answer
    x = 52,132.71

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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.