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Finding the Fourth Proportional to 94,720.39, 141,980.65 and 31,523.65

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Solution

The fourth proportional to 94,720.39, 141,980.65 and 31,523.65 is: 47,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,720.39 : 141,980.65 = 31,523.65 : x
  2. Step 2: Convert to fraction form
    94,720.39/141,980.65 = 31,523.65/x
  3. Step 3: Cross multiply
    94,720.39x = 141,980.65 × 31,523.65
  4. Step 4: Simplify right side
    94,720.39x = 4,475,747,883.61
  5. Step 5: Solve for x
    x = 4,475,747,883.61/94,720.39
  6. Step 6: Final answer
    x = 47,252.21

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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.