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Finding the Fourth Proportional to 129,959.76, 194,900.40 and 67,596.24

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Solution

The fourth proportional to 129,959.76, 194,900.40 and 67,596.24 is: 101,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,959.76 : 194,900.40 = 67,596.24 : x
  2. Step 2: Convert to fraction form
    129,959.76/194,900.40 = 67,596.24/x
  3. Step 3: Cross multiply
    129,959.76x = 194,900.40 × 67,596.24
  4. Step 4: Simplify right side
    129,959.76x = 13,174,534,214.50
  5. Step 5: Solve for x
    x = 13,174,534,214.50/129,959.76
  6. Step 6: Final answer
    x = 101,373.95

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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.