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Finding the Fourth Proportional to 95,416.80, 143,125.20 and 84,919.20

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Solution

The fourth proportional to 95,416.80, 143,125.20 and 84,919.20 is: 127,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,416.80 : 143,125.20 = 84,919.20 : x
  2. Step 2: Convert to fraction form
    95,416.80/143,125.20 = 84,919.20/x
  3. Step 3: Cross multiply
    95,416.80x = 143,125.20 × 84,919.20
  4. Step 4: Simplify right side
    95,416.80x = 12,154,077,483.84
  5. Step 5: Solve for x
    x = 12,154,077,483.84/95,416.80
  6. Step 6: Final answer
    x = 127,378.80

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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.