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Finding the Fourth Proportional to 95,999.55, 143,999.33 and 72,671.55

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Solution

The fourth proportional to 95,999.55, 143,999.33 and 72,671.55 is: 109,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,999.55 : 143,999.33 = 72,671.55 : x
  2. Step 2: Convert to fraction form
    95,999.55/143,999.33 = 72,671.55/x
  3. Step 3: Cross multiply
    95,999.55x = 143,999.33 × 72,671.55
  4. Step 4: Simplify right side
    95,999.55x = 10,464,654,146.70
  5. Step 5: Solve for x
    x = 10,464,654,146.70/95,999.55
  6. Step 6: Final answer
    x = 109,007.33

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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.