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Finding the Fourth Proportional to 92,321.76, 127,407.74 and 52,037.20

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Solution

The fourth proportional to 92,321.76, 127,407.74 and 52,037.20 is: 71,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.76 : 127,407.74 = 52,037.20 : x
  2. Step 2: Convert to fraction form
    92,321.76/127,407.74 = 52,037.20/x
  3. Step 3: Cross multiply
    92,321.76x = 127,407.74 × 52,037.20
  4. Step 4: Simplify right side
    92,321.76x = 6,629,942,047.93
  5. Step 5: Solve for x
    x = 6,629,942,047.93/92,321.76
  6. Step 6: Final answer
    x = 71,813.43

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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.