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Finding the Fourth Proportional to 187,793.61, 259,403.63 and 139,963.92

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Solution

The fourth proportional to 187,793.61, 259,403.63 and 139,963.92 is: 193,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,793.61 : 259,403.63 = 139,963.92 : x
  2. Step 2: Convert to fraction form
    187,793.61/259,403.63 = 139,963.92/x
  3. Step 3: Cross multiply
    187,793.61x = 259,403.63 × 139,963.92
  4. Step 4: Simplify right side
    187,793.61x = 36,307,148,217.21
  5. Step 5: Solve for x
    x = 36,307,148,217.21/187,793.61
  6. Step 6: Final answer
    x = 193,335.38

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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.