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Finding the Fourth Proportional to 95,432.80, 143,165.40 and 28,872.40

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Solution

The fourth proportional to 95,432.80, 143,165.40 and 28,872.40 is: 43,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,432.80 : 143,165.40 = 28,872.40 : x
  2. Step 2: Convert to fraction form
    95,432.80/143,165.40 = 28,872.40/x
  3. Step 3: Cross multiply
    95,432.80x = 143,165.40 × 28,872.40
  4. Step 4: Simplify right side
    95,432.80x = 4,133,528,694.96
  5. Step 5: Solve for x
    x = 4,133,528,694.96/95,432.80
  6. Step 6: Final answer
    x = 43,313.50

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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.