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Finding the Fourth Proportional to 95,538.80, 143,308.20 and 28,975.70

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Solution

The fourth proportional to 95,538.80, 143,308.20 and 28,975.70 is: 43,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,538.80 : 143,308.20 = 28,975.70 : x
  2. Step 2: Convert to fraction form
    95,538.80/143,308.20 = 28,975.70/x
  3. Step 3: Cross multiply
    95,538.80x = 143,308.20 × 28,975.70
  4. Step 4: Simplify right side
    95,538.80x = 4,152,455,410.74
  5. Step 5: Solve for x
    x = 4,152,455,410.74/95,538.80
  6. Step 6: Final answer
    x = 43,463.55

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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.