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Finding the Fourth Proportional to 74,613.43, 111,849.80 and 37,138.08

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Solution

The fourth proportional to 74,613.43, 111,849.80 and 37,138.08 is: 55,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,613.43 : 111,849.80 = 37,138.08 : x
  2. Step 2: Convert to fraction form
    74,613.43/111,849.80 = 37,138.08/x
  3. Step 3: Cross multiply
    74,613.43x = 111,849.80 × 37,138.08
  4. Step 4: Simplify right side
    74,613.43x = 4,153,886,582.11
  5. Step 5: Solve for x
    x = 4,153,886,582.11/74,613.43
  6. Step 6: Final answer
    x = 55,672.10

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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.