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Finding the Fourth Proportional to 95,436.40, 143,225.70 and 36,387.40

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Solution

The fourth proportional to 95,436.40, 143,225.70 and 36,387.40 is: 54,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,436.40 : 143,225.70 = 36,387.40 : x
  2. Step 2: Convert to fraction form
    95,436.40/143,225.70 = 36,387.40/x
  3. Step 3: Cross multiply
    95,436.40x = 143,225.70 × 36,387.40
  4. Step 4: Simplify right side
    95,436.40x = 5,211,610,836.18
  5. Step 5: Solve for x
    x = 5,211,610,836.18/95,436.40
  6. Step 6: Final answer
    x = 54,608.21

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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.