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Finding the Fourth Proportional to 150,074.70, 224,731.04 and 90,065.40

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Solution

The fourth proportional to 150,074.70, 224,731.04 and 90,065.40 is: 134,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,074.70 : 224,731.04 = 90,065.40 : x
  2. Step 2: Convert to fraction form
    150,074.70/224,731.04 = 90,065.40/x
  3. Step 3: Cross multiply
    150,074.70x = 224,731.04 × 90,065.40
  4. Step 4: Simplify right side
    150,074.70x = 20,240,490,559.69
  5. Step 5: Solve for x
    x = 20,240,490,559.69/150,074.70
  6. Step 6: Final answer
    x = 134,869.44

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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.