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Finding the Fourth Proportional to 221,798.70, 332,114.85 and 162,312.30

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Solution

The fourth proportional to 221,798.70, 332,114.85 and 162,312.30 is: 243,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,798.70 : 332,114.85 = 162,312.30 : x
  2. Step 2: Convert to fraction form
    221,798.70/332,114.85 = 162,312.30/x
  3. Step 3: Cross multiply
    221,798.70x = 332,114.85 × 162,312.30
  4. Step 4: Simplify right side
    221,798.70x = 53,906,325,167.66
  5. Step 5: Solve for x
    x = 53,906,325,167.66/221,798.70
  6. Step 6: Final answer
    x = 243,041.66

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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.