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Finding the Fourth Proportional to 143,590.98, 215,396.86 and 43,750.92

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Solution

The fourth proportional to 143,590.98, 215,396.86 and 43,750.92 is: 65,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,590.98 : 215,396.86 = 43,750.92 : x
  2. Step 2: Convert to fraction form
    143,590.98/215,396.86 = 43,750.92/x
  3. Step 3: Cross multiply
    143,590.98x = 215,396.86 × 43,750.92
  4. Step 4: Simplify right side
    143,590.98x = 9,423,810,790.11
  5. Step 5: Solve for x
    x = 9,423,810,790.11/143,590.98
  6. Step 6: Final answer
    x = 65,629.55

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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.