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Finding the Fourth Proportional to 150,372.84, 225,488.61 and 87,210.90

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Solution

The fourth proportional to 150,372.84, 225,488.61 and 87,210.90 is: 130,775.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,372.84 : 225,488.61 = 87,210.90 : x
  2. Step 2: Convert to fraction form
    150,372.84/225,488.61 = 87,210.90/x
  3. Step 3: Cross multiply
    150,372.84x = 225,488.61 × 87,210.90
  4. Step 4: Simplify right side
    150,372.84x = 19,665,064,617.85
  5. Step 5: Solve for x
    x = 19,665,064,617.85/150,372.84
  6. Step 6: Final answer
    x = 130,775.38

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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.