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Finding the Fourth Proportional to 115,874.40, 173,830.80 and 49,346.40

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Solution

The fourth proportional to 115,874.40, 173,830.80 and 49,346.40 is: 74,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,874.40 : 173,830.80 = 49,346.40 : x
  2. Step 2: Convert to fraction form
    115,874.40/173,830.80 = 49,346.40/x
  3. Step 3: Cross multiply
    115,874.40x = 173,830.80 × 49,346.40
  4. Step 4: Simplify right side
    115,874.40x = 8,577,924,189.12
  5. Step 5: Solve for x
    x = 8,577,924,189.12/115,874.40
  6. Step 6: Final answer
    x = 74,027.78

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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.