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Finding the Fourth Proportional to 124,469.84, 171,761.60 and 70,747.40

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Solution

The fourth proportional to 124,469.84, 171,761.60 and 70,747.40 is: 97,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,469.84 : 171,761.60 = 70,747.40 : x
  2. Step 2: Convert to fraction form
    124,469.84/171,761.60 = 70,747.40/x
  3. Step 3: Cross multiply
    124,469.84x = 171,761.60 × 70,747.40
  4. Step 4: Simplify right side
    124,469.84x = 12,151,686,619.84
  5. Step 5: Solve for x
    x = 12,151,686,619.84/124,469.84
  6. Step 6: Final answer
    x = 97,627.56

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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.