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Finding the Fourth Proportional to 90,999.88, 136,499.66 and 41,097.48

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Solution

The fourth proportional to 90,999.88, 136,499.66 and 41,097.48 is: 61,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,999.88 : 136,499.66 = 41,097.48 : x
  2. Step 2: Convert to fraction form
    90,999.88/136,499.66 = 41,097.48/x
  3. Step 3: Cross multiply
    90,999.88x = 136,499.66 × 41,097.48
  4. Step 4: Simplify right side
    90,999.88x = 5,609,792,046.86
  5. Step 5: Solve for x
    x = 5,609,792,046.86/90,999.88
  6. Step 6: Final answer
    x = 61,646.15

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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.