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Finding the Fourth Proportional to 149,999.40, 224,999.10 and 146,500.20

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Solution

The fourth proportional to 149,999.40, 224,999.10 and 146,500.20 is: 219,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.40 : 224,999.10 = 146,500.20 : x
  2. Step 2: Convert to fraction form
    149,999.40/224,999.10 = 146,500.20/x
  3. Step 3: Cross multiply
    149,999.40x = 224,999.10 × 146,500.20
  4. Step 4: Simplify right side
    149,999.40x = 32,962,413,149.82
  5. Step 5: Solve for x
    x = 32,962,413,149.82/149,999.40
  6. Step 6: Final answer
    x = 219,750.30

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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.