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Finding the Fourth Proportional to 92,084.70, 127,074.78 and 56,274.60

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Solution

The fourth proportional to 92,084.70, 127,074.78 and 56,274.60 is: 77,657.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,084.70 : 127,074.78 = 56,274.60 : x
  2. Step 2: Convert to fraction form
    92,084.70/127,074.78 = 56,274.60/x
  3. Step 3: Cross multiply
    92,084.70x = 127,074.78 × 56,274.60
  4. Step 4: Simplify right side
    92,084.70x = 7,151,082,414.59
  5. Step 5: Solve for x
    x = 7,151,082,414.59/92,084.70
  6. Step 6: Final answer
    x = 77,657.66

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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.