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Finding the Fourth Proportional to 173,813.40, 260,720.10 and 136,488.60

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Solution

The fourth proportional to 173,813.40, 260,720.10 and 136,488.60 is: 204,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,813.40 : 260,720.10 = 136,488.60 : x
  2. Step 2: Convert to fraction form
    173,813.40/260,720.10 = 136,488.60/x
  3. Step 3: Cross multiply
    173,813.40x = 260,720.10 × 136,488.60
  4. Step 4: Simplify right side
    173,813.40x = 35,585,321,440.86
  5. Step 5: Solve for x
    x = 35,585,321,440.86/173,813.40
  6. Step 6: Final answer
    x = 204,732.90

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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.