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Finding the Fourth Proportional to 95,215.65, 142,823.99 and 28,655.33

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Solution

The fourth proportional to 95,215.65, 142,823.99 and 28,655.33 is: 42,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,215.65 : 142,823.99 = 28,655.33 : x
  2. Step 2: Convert to fraction form
    95,215.65/142,823.99 = 28,655.33/x
  3. Step 3: Cross multiply
    95,215.65x = 142,823.99 × 28,655.33
  4. Step 4: Simplify right side
    95,215.65x = 4,092,668,565.37
  5. Step 5: Solve for x
    x = 4,092,668,565.37/95,215.65
  6. Step 6: Final answer
    x = 42,983.15

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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.