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Finding the Fourth Proportional to 129,193.62, 193,790.52 and 35,699.46

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Solution

The fourth proportional to 129,193.62, 193,790.52 and 35,699.46 is: 53,549.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,193.62 : 193,790.52 = 35,699.46 : x
  2. Step 2: Convert to fraction form
    129,193.62/193,790.52 = 35,699.46/x
  3. Step 3: Cross multiply
    129,193.62x = 193,790.52 × 35,699.46
  4. Step 4: Simplify right side
    129,193.62x = 6,918,216,917.12
  5. Step 5: Solve for x
    x = 6,918,216,917.12/129,193.62
  6. Step 6: Final answer
    x = 53,549.21

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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.