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Finding the Fourth Proportional to 84,967.38, 127,469.70 and 40,533.01

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Solution

The fourth proportional to 84,967.38, 127,469.70 and 40,533.01 is: 60,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,967.38 : 127,469.70 = 40,533.01 : x
  2. Step 2: Convert to fraction form
    84,967.38/127,469.70 = 40,533.01/x
  3. Step 3: Cross multiply
    84,967.38x = 127,469.70 × 40,533.01
  4. Step 4: Simplify right side
    84,967.38x = 5,166,730,306.12
  5. Step 5: Solve for x
    x = 5,166,730,306.12/84,967.38
  6. Step 6: Final answer
    x = 60,808.40

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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.