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Finding the Fourth Proportional to 115,573.80, 173,360.70 and 108,575.40

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Solution

The fourth proportional to 115,573.80, 173,360.70 and 108,575.40 is: 162,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,573.80 : 173,360.70 = 108,575.40 : x
  2. Step 2: Convert to fraction form
    115,573.80/173,360.70 = 108,575.40/x
  3. Step 3: Cross multiply
    115,573.80x = 173,360.70 × 108,575.40
  4. Step 4: Simplify right side
    115,573.80x = 18,822,707,346.78
  5. Step 5: Solve for x
    x = 18,822,707,346.78/115,573.80
  6. Step 6: Final answer
    x = 162,863.10

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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.