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Finding the Fourth Proportional to 72,493.20, 108,743.04 and 37,501.20

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Solution

The fourth proportional to 72,493.20, 108,743.04 and 37,501.20 is: 56,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,493.20 : 108,743.04 = 37,501.20 : x
  2. Step 2: Convert to fraction form
    72,493.20/108,743.04 = 37,501.20/x
  3. Step 3: Cross multiply
    72,493.20x = 108,743.04 × 37,501.20
  4. Step 4: Simplify right side
    72,493.20x = 4,077,994,491.65
  5. Step 5: Solve for x
    x = 4,077,994,491.65/72,493.20
  6. Step 6: Final answer
    x = 56,253.48

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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.