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Finding the Fourth Proportional to 102,573.20, 153,928.53 and 36,013.55

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Solution

The fourth proportional to 102,573.20, 153,928.53 and 36,013.55 is: 54,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,573.20 : 153,928.53 = 36,013.55 : x
  2. Step 2: Convert to fraction form
    102,573.20/153,928.53 = 36,013.55/x
  3. Step 3: Cross multiply
    102,573.20x = 153,928.53 × 36,013.55
  4. Step 4: Simplify right side
    102,573.20x = 5,543,512,041.94
  5. Step 5: Solve for x
    x = 5,543,512,041.94/102,573.20
  6. Step 6: Final answer
    x = 54,044.45

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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.