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Finding the Fourth Proportional to 92,531.79, 127,684.38 and 53,763.57

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Solution

The fourth proportional to 92,531.79, 127,684.38 and 53,763.57 is: 74,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,531.79 : 127,684.38 = 53,763.57 : x
  2. Step 2: Convert to fraction form
    92,531.79/127,684.38 = 53,763.57/x
  3. Step 3: Cross multiply
    92,531.79x = 127,684.38 × 53,763.57
  4. Step 4: Simplify right side
    92,531.79x = 6,864,768,102.04
  5. Step 5: Solve for x
    x = 6,864,768,102.04/92,531.79
  6. Step 6: Final answer
    x = 74,188.21

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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.