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Finding the Fourth Proportional to 92,601.12, 127,799.02 and 66,781.01

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Solution

The fourth proportional to 92,601.12, 127,799.02 and 66,781.01 is: 92,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,601.12 : 127,799.02 = 66,781.01 : x
  2. Step 2: Convert to fraction form
    92,601.12/127,799.02 = 66,781.01/x
  3. Step 3: Cross multiply
    92,601.12x = 127,799.02 × 66,781.01
  4. Step 4: Simplify right side
    92,601.12x = 8,534,546,941.07
  5. Step 5: Solve for x
    x = 8,534,546,941.07/92,601.12
  6. Step 6: Final answer
    x = 92,164.62

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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.