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Finding the Fourth Proportional to 95,343.80, 143,015.70 and 60,438.20

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Solution

The fourth proportional to 95,343.80, 143,015.70 and 60,438.20 is: 90,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,343.80 : 143,015.70 = 60,438.20 : x
  2. Step 2: Convert to fraction form
    95,343.80/143,015.70 = 60,438.20/x
  3. Step 3: Cross multiply
    95,343.80x = 143,015.70 × 60,438.20
  4. Step 4: Simplify right side
    95,343.80x = 8,643,611,479.74
  5. Step 5: Solve for x
    x = 8,643,611,479.74/95,343.80
  6. Step 6: Final answer
    x = 90,657.30

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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.