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Finding the Fourth Proportional to 129,753.40, 194,630.10 and 46,655.80

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Solution

The fourth proportional to 129,753.40, 194,630.10 and 46,655.80 is: 69,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,753.40 : 194,630.10 = 46,655.80 : x
  2. Step 2: Convert to fraction form
    129,753.40/194,630.10 = 46,655.80/x
  3. Step 3: Cross multiply
    129,753.40x = 194,630.10 × 46,655.80
  4. Step 4: Simplify right side
    129,753.40x = 9,080,623,019.58
  5. Step 5: Solve for x
    x = 9,080,623,019.58/129,753.40
  6. Step 6: Final answer
    x = 69,983.70

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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.