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Finding the Fourth Proportional to 124,373.88, 171,640.58 and 70,668

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Solution

The fourth proportional to 124,373.88, 171,640.58 and 70,668 is: 97,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,373.88 : 171,640.58 = 70,668 : x
  2. Step 2: Convert to fraction form
    124,373.88/171,640.58 = 70,668/x
  3. Step 3: Cross multiply
    124,373.88x = 171,640.58 × 70,668
  4. Step 4: Simplify right side
    124,373.88x = 12,129,496,507.44
  5. Step 5: Solve for x
    x = 12,129,496,507.44/124,373.88
  6. Step 6: Final answer
    x = 97,524.47

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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.