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Finding the Fourth Proportional to 115,873.60, 173,813.64 and 40,983.16

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Solution

The fourth proportional to 115,873.60, 173,813.64 and 40,983.16 is: 61,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,873.60 : 173,813.64 = 40,983.16 : x
  2. Step 2: Convert to fraction form
    115,873.60/173,813.64 = 40,983.16/x
  3. Step 3: Cross multiply
    115,873.60x = 173,813.64 × 40,983.16
  4. Step 4: Simplify right side
    115,873.60x = 7,123,432,218.30
  5. Step 5: Solve for x
    x = 7,123,432,218.30/115,873.60
  6. Step 6: Final answer
    x = 61,475.89

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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.