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Finding the Fourth Proportional to 95,475.40, 143,213.10 and 86,727.40

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Solution

The fourth proportional to 95,475.40, 143,213.10 and 86,727.40 is: 130,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,475.40 : 143,213.10 = 86,727.40 : x
  2. Step 2: Convert to fraction form
    95,475.40/143,213.10 = 86,727.40/x
  3. Step 3: Cross multiply
    95,475.40x = 143,213.10 × 86,727.40
  4. Step 4: Simplify right side
    95,475.40x = 12,420,499,808.94
  5. Step 5: Solve for x
    x = 12,420,499,808.94/95,475.40
  6. Step 6: Final answer
    x = 130,091.10

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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.