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Finding the Fourth Proportional to 72,272.56, 108,329.76 and 37,214.32

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Solution

The fourth proportional to 72,272.56, 108,329.76 and 37,214.32 is: 55,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,272.56 : 108,329.76 = 37,214.32 : x
  2. Step 2: Convert to fraction form
    72,272.56/108,329.76 = 37,214.32/x
  3. Step 3: Cross multiply
    72,272.56x = 108,329.76 × 37,214.32
  4. Step 4: Simplify right side
    72,272.56x = 4,031,418,354.16
  5. Step 5: Solve for x
    x = 4,031,418,354.16/72,272.56
  6. Step 6: Final answer
    x = 55,780.76

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1.5x scale

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.