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Finding the Fourth Proportional to 124,391.85, 171,660.81 and 70,676.94

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Solution

The fourth proportional to 124,391.85, 171,660.81 and 70,676.94 is: 97,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,391.85 : 171,660.81 = 70,676.94 : x
  2. Step 2: Convert to fraction form
    124,391.85/171,660.81 = 70,676.94/x
  3. Step 3: Cross multiply
    124,391.85x = 171,660.81 × 70,676.94
  4. Step 4: Simplify right side
    124,391.85x = 12,132,460,768.72
  5. Step 5: Solve for x
    x = 12,132,460,768.72/124,391.85
  6. Step 6: Final answer
    x = 97,534.21

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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.