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Finding the Fourth Proportional to 97,380.62, 134,391.54 and 54,938.24

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Solution

The fourth proportional to 97,380.62, 134,391.54 and 54,938.24 is: 75,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,380.62 : 134,391.54 = 54,938.24 : x
  2. Step 2: Convert to fraction form
    97,380.62/134,391.54 = 54,938.24/x
  3. Step 3: Cross multiply
    97,380.62x = 134,391.54 × 54,938.24
  4. Step 4: Simplify right side
    97,380.62x = 7,383,234,678.49
  5. Step 5: Solve for x
    x = 7,383,234,678.49/97,380.62
  6. Step 6: Final answer
    x = 75,818.32

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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.