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Finding the Fourth Proportional to 129,114.99, 193,683.65 and 35,620.74

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Solution

The fourth proportional to 129,114.99, 193,683.65 and 35,620.74 is: 53,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,114.99 : 193,683.65 = 35,620.74 : x
  2. Step 2: Convert to fraction form
    129,114.99/193,683.65 = 35,620.74/x
  3. Step 3: Cross multiply
    129,114.99x = 193,683.65 × 35,620.74
  4. Step 4: Simplify right side
    129,114.99x = 6,899,154,760.80
  5. Step 5: Solve for x
    x = 6,899,154,760.80/129,114.99
  6. Step 6: Final answer
    x = 53,434.19

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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.