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Finding the Fourth Proportional to 74,752.68, 112,109.92 and 22,149.88

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Solution

The fourth proportional to 74,752.68, 112,109.92 and 22,149.88 is: 33,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,752.68 : 112,109.92 = 22,149.88 : x
  2. Step 2: Convert to fraction form
    74,752.68/112,109.92 = 22,149.88/x
  3. Step 3: Cross multiply
    74,752.68x = 112,109.92 × 22,149.88
  4. Step 4: Simplify right side
    74,752.68x = 2,483,221,274.81
  5. Step 5: Solve for x
    x = 2,483,221,274.81/74,752.68
  6. Step 6: Final answer
    x = 33,219.16

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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.