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Finding the Fourth Proportional to 134,697.72, 201,988.02 and 38,613.77

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Solution

The fourth proportional to 134,697.72, 201,988.02 and 38,613.77 is: 57,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,697.72 : 201,988.02 = 38,613.77 : x
  2. Step 2: Convert to fraction form
    134,697.72/201,988.02 = 38,613.77/x
  3. Step 3: Cross multiply
    134,697.72x = 201,988.02 × 38,613.77
  4. Step 4: Simplify right side
    134,697.72x = 7,799,519,452.01
  5. Step 5: Solve for x
    x = 7,799,519,452.01/134,697.72
  6. Step 6: Final answer
    x = 57,903.87

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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.