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Finding the Fourth Proportional to 92,532.79, 127,685.76 and 53,764.57

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Solution

The fourth proportional to 92,532.79, 127,685.76 and 53,764.57 is: 74,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,532.79 : 127,685.76 = 53,764.57 : x
  2. Step 2: Convert to fraction form
    92,532.79/127,685.76 = 53,764.57/x
  3. Step 3: Cross multiply
    92,532.79x = 127,685.76 × 53,764.57
  4. Step 4: Simplify right side
    92,532.79x = 6,864,969,981.52
  5. Step 5: Solve for x
    x = 6,864,969,981.52/92,532.79
  6. Step 6: Final answer
    x = 74,189.59

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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.