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Finding the Fourth Proportional to 126,064.20, 176,621.10 and 126,064.20

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Solution

The fourth proportional to 126,064.20, 176,621.10 and 126,064.20 is: 176,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,064.20 : 176,621.10 = 126,064.20 : x
  2. Step 2: Convert to fraction form
    126,064.20/176,621.10 = 126,064.20/x
  3. Step 3: Cross multiply
    126,064.20x = 176,621.10 × 126,064.20
  4. Step 4: Simplify right side
    126,064.20x = 22,265,597,674.62
  5. Step 5: Solve for x
    x = 22,265,597,674.62/126,064.20
  6. Step 6: Final answer
    x = 176,621.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.