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Finding the Fourth Proportional to 228,549.85, 315,294.11 and 148,003.34

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Solution

The fourth proportional to 228,549.85, 315,294.11 and 148,003.34 is: 204,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,549.85 : 315,294.11 = 148,003.34 : x
  2. Step 2: Convert to fraction form
    228,549.85/315,294.11 = 148,003.34/x
  3. Step 3: Cross multiply
    228,549.85x = 315,294.11 × 148,003.34
  4. Step 4: Simplify right side
    228,549.85x = 46,664,581,410.55
  5. Step 5: Solve for x
    x = 46,664,581,410.55/228,549.85
  6. Step 6: Final answer
    x = 204,176.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.