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Finding the Fourth Proportional to 115,887.60, 173,815.20 and 37,009.80

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Solution

The fourth proportional to 115,887.60, 173,815.20 and 37,009.80 is: 55,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,887.60 : 173,815.20 = 37,009.80 : x
  2. Step 2: Convert to fraction form
    115,887.60/173,815.20 = 37,009.80/x
  3. Step 3: Cross multiply
    115,887.60x = 173,815.20 × 37,009.80
  4. Step 4: Simplify right side
    115,887.60x = 6,432,865,788.96
  5. Step 5: Solve for x
    x = 6,432,865,788.96/115,887.60
  6. Step 6: Final answer
    x = 55,509.53

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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.