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Finding the Fourth Proportional to 48,472.30, 72,708.45 and 43,806.70

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Solution

The fourth proportional to 48,472.30, 72,708.45 and 43,806.70 is: 65,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,472.30 : 72,708.45 = 43,806.70 : x
  2. Step 2: Convert to fraction form
    48,472.30/72,708.45 = 43,806.70/x
  3. Step 3: Cross multiply
    48,472.30x = 72,708.45 × 43,806.70
  4. Step 4: Simplify right side
    48,472.30x = 3,185,117,256.62
  5. Step 5: Solve for x
    x = 3,185,117,256.62/48,472.30
  6. Step 6: Final answer
    x = 65,710.05

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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.