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Finding the Fourth Proportional to 95,438.20, 143,034.90 and 53,318.20

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Solution

The fourth proportional to 95,438.20, 143,034.90 and 53,318.20 is: 79,908.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,438.20 : 143,034.90 = 53,318.20 : x
  2. Step 2: Convert to fraction form
    95,438.20/143,034.90 = 53,318.20/x
  3. Step 3: Cross multiply
    95,438.20x = 143,034.90 × 53,318.20
  4. Step 4: Simplify right side
    95,438.20x = 7,626,363,405.18
  5. Step 5: Solve for x
    x = 7,626,363,405.18/95,438.20
  6. Step 6: Final answer
    x = 79,908.92

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1.5x scale

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.