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Finding the Fourth Proportional to 91,570.96, 137,403.32 and 43,593.86

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Solution

The fourth proportional to 91,570.96, 137,403.32 and 43,593.86 is: 65,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,570.96 : 137,403.32 = 43,593.86 : x
  2. Step 2: Convert to fraction form
    91,570.96/137,403.32 = 43,593.86/x
  3. Step 3: Cross multiply
    91,570.96x = 137,403.32 × 43,593.86
  4. Step 4: Simplify right side
    91,570.96x = 5,989,940,877.65
  5. Step 5: Solve for x
    x = 5,989,940,877.65/91,570.96
  6. Step 6: Final answer
    x = 65,413.11

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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.