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Finding the Fourth Proportional to 48,089.20, 72,004.20 and 37,721.20

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Solution

The fourth proportional to 48,089.20, 72,004.20 and 37,721.20 is: 56,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,089.20 : 72,004.20 = 37,721.20 : x
  2. Step 2: Convert to fraction form
    48,089.20/72,004.20 = 37,721.20/x
  3. Step 3: Cross multiply
    48,089.20x = 72,004.20 × 37,721.20
  4. Step 4: Simplify right side
    48,089.20x = 2,716,084,829.04
  5. Step 5: Solve for x
    x = 2,716,084,829.04/48,089.20
  6. Step 6: Final answer
    x = 56,480.14

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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.