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Finding the Fourth Proportional to 74,614.10, 111,850.80 and 37,138.76

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Solution

The fourth proportional to 74,614.10, 111,850.80 and 37,138.76 is: 55,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,614.10 : 111,850.80 = 37,138.76 : x
  2. Step 2: Convert to fraction form
    74,614.10/111,850.80 = 37,138.76/x
  3. Step 3: Cross multiply
    74,614.10x = 111,850.80 × 37,138.76
  4. Step 4: Simplify right side
    74,614.10x = 4,154,000,017.01
  5. Step 5: Solve for x
    x = 4,154,000,017.01/74,614.10
  6. Step 6: Final answer
    x = 55,673.12

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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.