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Finding the Fourth Proportional to 124,550.72, 171,883.79 and 70,843.47

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Solution

The fourth proportional to 124,550.72, 171,883.79 and 70,843.47 is: 97,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,550.72 : 171,883.79 = 70,843.47 : x
  2. Step 2: Convert to fraction form
    124,550.72/171,883.79 = 70,843.47/x
  3. Step 3: Cross multiply
    124,550.72x = 171,883.79 × 70,843.47
  4. Step 4: Simplify right side
    124,550.72x = 12,176,843,766.13
  5. Step 5: Solve for x
    x = 12,176,843,766.13/124,550.72
  6. Step 6: Final answer
    x = 97,766.15

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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.