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Finding the Fourth Proportional to 92,745.60, 127,988.89 and 52,458.49

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Solution

The fourth proportional to 92,745.60, 127,988.89 and 52,458.49 is: 72,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.60 : 127,988.89 = 52,458.49 : x
  2. Step 2: Convert to fraction form
    92,745.60/127,988.89 = 52,458.49/x
  3. Step 3: Cross multiply
    92,745.60x = 127,988.89 × 52,458.49
  4. Step 4: Simplify right side
    92,745.60x = 6,714,103,906.18
  5. Step 5: Solve for x
    x = 6,714,103,906.18/92,745.60
  6. Step 6: Final answer
    x = 72,392.69

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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.