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Finding the Fourth Proportional to 183,672.50, 275,508.76 and 72,864.50

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Solution

The fourth proportional to 183,672.50, 275,508.76 and 72,864.50 is: 109,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,672.50 : 275,508.76 = 72,864.50 : x
  2. Step 2: Convert to fraction form
    183,672.50/275,508.76 = 72,864.50/x
  3. Step 3: Cross multiply
    183,672.50x = 275,508.76 × 72,864.50
  4. Step 4: Simplify right side
    183,672.50x = 20,074,808,043.02
  5. Step 5: Solve for x
    x = 20,074,808,043.02/183,672.50
  6. Step 6: Final answer
    x = 109,296.75

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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.