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Finding the Fourth Proportional to 91,155.20, 136,644.48 and 34,952.32

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Solution

The fourth proportional to 91,155.20, 136,644.48 and 34,952.32 is: 52,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.20 : 136,644.48 = 34,952.32 : x
  2. Step 2: Convert to fraction form
    91,155.20/136,644.48 = 34,952.32/x
  3. Step 3: Cross multiply
    91,155.20x = 136,644.48 × 34,952.32
  4. Step 4: Simplify right side
    91,155.20x = 4,776,041,591.19
  5. Step 5: Solve for x
    x = 4,776,041,591.19/91,155.20
  6. Step 6: Final answer
    x = 52,394.61

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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.