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Finding the Fourth Proportional to 115,999.24, 173,999.88 and 45,878.56

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Solution

The fourth proportional to 115,999.24, 173,999.88 and 45,878.56 is: 68,818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,999.24 : 173,999.88 = 45,878.56 : x
  2. Step 2: Convert to fraction form
    115,999.24/173,999.88 = 45,878.56/x
  3. Step 3: Cross multiply
    115,999.24x = 173,999.88 × 45,878.56
  4. Step 4: Simplify right side
    115,999.24x = 7,982,863,671.62
  5. Step 5: Solve for x
    x = 7,982,863,671.62/115,999.24
  6. Step 6: Final answer
    x = 68,818.24

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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.