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Finding the Fourth Proportional to 95,640.40, 143,460.60 and 73,565.20

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Solution

The fourth proportional to 95,640.40, 143,460.60 and 73,565.20 is: 110,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,640.40 : 143,460.60 = 73,565.20 : x
  2. Step 2: Convert to fraction form
    95,640.40/143,460.60 = 73,565.20/x
  3. Step 3: Cross multiply
    95,640.40x = 143,460.60 × 73,565.20
  4. Step 4: Simplify right side
    95,640.40x = 10,553,707,731.12
  5. Step 5: Solve for x
    x = 10,553,707,731.12/95,640.40
  6. Step 6: Final answer
    x = 110,347.80

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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.