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Finding the Fourth Proportional to 72,303.84, 108,622.26 and 51,296.04

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Solution

The fourth proportional to 72,303.84, 108,622.26 and 51,296.04 is: 77,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,303.84 : 108,622.26 = 51,296.04 : x
  2. Step 2: Convert to fraction form
    72,303.84/108,622.26 = 51,296.04/x
  3. Step 3: Cross multiply
    72,303.84x = 108,622.26 × 51,296.04
  4. Step 4: Simplify right side
    72,303.84x = 5,571,891,793.85
  5. Step 5: Solve for x
    x = 5,571,891,793.85/72,303.84
  6. Step 6: Final answer
    x = 77,062.18

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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.