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Finding the Fourth Proportional to 92,199.56, 127,203.88 and 55,912.08

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Solution

The fourth proportional to 92,199.56, 127,203.88 and 55,912.08 is: 77,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,199.56 : 127,203.88 = 55,912.08 : x
  2. Step 2: Convert to fraction form
    92,199.56/127,203.88 = 55,912.08/x
  3. Step 3: Cross multiply
    92,199.56x = 127,203.88 × 55,912.08
  4. Step 4: Simplify right side
    92,199.56x = 7,112,233,514.87
  5. Step 5: Solve for x
    x = 7,112,233,514.87/92,199.56
  6. Step 6: Final answer
    x = 77,139.56

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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.