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Finding the Fourth Proportional to 73,502.61, 110,255.13 and 20,913.45

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Solution

The fourth proportional to 73,502.61, 110,255.13 and 20,913.45 is: 31,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,502.61 : 110,255.13 = 20,913.45 : x
  2. Step 2: Convert to fraction form
    73,502.61/110,255.13 = 20,913.45/x
  3. Step 3: Cross multiply
    73,502.61x = 110,255.13 × 20,913.45
  4. Step 4: Simplify right side
    73,502.61x = 2,305,815,148.50
  5. Step 5: Solve for x
    x = 2,305,815,148.50/73,502.61
  6. Step 6: Final answer
    x = 31,370.52

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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.