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Finding the Fourth Proportional to 161,205.30, 225,920.70 and 161,205.30

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Solution

The fourth proportional to 161,205.30, 225,920.70 and 161,205.30 is: 225,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,205.30 : 225,920.70 = 161,205.30 : x
  2. Step 2: Convert to fraction form
    161,205.30/225,920.70 = 161,205.30/x
  3. Step 3: Cross multiply
    161,205.30x = 225,920.70 × 161,205.30
  4. Step 4: Simplify right side
    161,205.30x = 36,419,614,219.71
  5. Step 5: Solve for x
    x = 36,419,614,219.71/161,205.30
  6. Step 6: Final answer
    x = 225,920.70

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1.5x scale

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.