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Finding the Fourth Proportional to 92,166.80, 127,199.75 and 56,380.61

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Solution

The fourth proportional to 92,166.80, 127,199.75 and 56,380.61 is: 77,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,166.80 : 127,199.75 = 56,380.61 : x
  2. Step 2: Convert to fraction form
    92,166.80/127,199.75 = 56,380.61/x
  3. Step 3: Cross multiply
    92,166.80x = 127,199.75 × 56,380.61
  4. Step 4: Simplify right side
    92,166.80x = 7,171,599,532.94
  5. Step 5: Solve for x
    x = 7,171,599,532.94/92,166.80
  6. Step 6: Final answer
    x = 77,811.10

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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.