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Finding the Fourth Proportional to 91,063.62, 136,594.80 and 75,448.44

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Solution

The fourth proportional to 91,063.62, 136,594.80 and 75,448.44 is: 113,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,063.62 : 136,594.80 = 75,448.44 : x
  2. Step 2: Convert to fraction form
    91,063.62/136,594.80 = 75,448.44/x
  3. Step 3: Cross multiply
    91,063.62x = 136,594.80 × 75,448.44
  4. Step 4: Simplify right side
    91,063.62x = 10,305,864,572.11
  5. Step 5: Solve for x
    x = 10,305,864,572.11/91,063.62
  6. Step 6: Final answer
    x = 113,172.14

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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.