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Finding the Fourth Proportional to 95,379.84, 131,608.80 and 55,087.20

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Solution

The fourth proportional to 95,379.84, 131,608.80 and 55,087.20 is: 76,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,379.84 : 131,608.80 = 55,087.20 : x
  2. Step 2: Convert to fraction form
    95,379.84/131,608.80 = 55,087.20/x
  3. Step 3: Cross multiply
    95,379.84x = 131,608.80 × 55,087.20
  4. Step 4: Simplify right side
    95,379.84x = 7,249,960,287.36
  5. Step 5: Solve for x
    x = 7,249,960,287.36/95,379.84
  6. Step 6: Final answer
    x = 76,011.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.