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Finding the Fourth Proportional to 95,564.94, 143,902.98 and 70,780.86

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Solution

The fourth proportional to 95,564.94, 143,902.98 and 70,780.86 is: 106,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,564.94 : 143,902.98 = 70,780.86 : x
  2. Step 2: Convert to fraction form
    95,564.94/143,902.98 = 70,780.86/x
  3. Step 3: Cross multiply
    95,564.94x = 143,902.98 × 70,780.86
  4. Step 4: Simplify right side
    95,564.94x = 10,185,576,680.96
  5. Step 5: Solve for x
    x = 10,185,576,680.96/95,564.94
  6. Step 6: Final answer
    x = 106,582.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.