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Finding the Fourth Proportional to 143,376.40, 214,870.20 and 95,856.40

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Solution

The fourth proportional to 143,376.40, 214,870.20 and 95,856.40 is: 143,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,376.40 : 214,870.20 = 95,856.40 : x
  2. Step 2: Convert to fraction form
    143,376.40/214,870.20 = 95,856.40/x
  3. Step 3: Cross multiply
    143,376.40x = 214,870.20 × 95,856.40
  4. Step 4: Simplify right side
    143,376.40x = 20,596,683,839.28
  5. Step 5: Solve for x
    x = 20,596,683,839.28/143,376.40
  6. Step 6: Final answer
    x = 143,654.63

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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.