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Finding the Fourth Proportional to 83,975.84, 125,963.60 and 57,600.72

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Solution

The fourth proportional to 83,975.84, 125,963.60 and 57,600.72 is: 86,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,975.84 : 125,963.60 = 57,600.72 : x
  2. Step 2: Convert to fraction form
    83,975.84/125,963.60 = 57,600.72/x
  3. Step 3: Cross multiply
    83,975.84x = 125,963.60 × 57,600.72
  4. Step 4: Simplify right side
    83,975.84x = 7,255,594,053.79
  5. Step 5: Solve for x
    x = 7,255,594,053.79/83,975.84
  6. Step 6: Final answer
    x = 86,400.97

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1.5x scale

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.