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Finding the Fourth Proportional to 79,685.10, 119,500.11 and 35,342.88

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Solution

The fourth proportional to 79,685.10, 119,500.11 and 35,342.88 is: 53,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,685.10 : 119,500.11 = 35,342.88 : x
  2. Step 2: Convert to fraction form
    79,685.10/119,500.11 = 35,342.88/x
  3. Step 3: Cross multiply
    79,685.10x = 119,500.11 × 35,342.88
  4. Step 4: Simplify right side
    79,685.10x = 4,223,478,047.72
  5. Step 5: Solve for x
    x = 4,223,478,047.72/79,685.10
  6. Step 6: Final answer
    x = 53,002.11

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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.