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Finding the Fourth Proportional to 92,894.88, 128,446.56 and 91,393.92

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Solution

The fourth proportional to 92,894.88, 128,446.56 and 91,393.92 is: 126,371.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,894.88 : 128,446.56 = 91,393.92 : x
  2. Step 2: Convert to fraction form
    92,894.88/128,446.56 = 91,393.92/x
  3. Step 3: Cross multiply
    92,894.88x = 128,446.56 × 91,393.92
  4. Step 4: Simplify right side
    92,894.88x = 11,739,234,628.92
  5. Step 5: Solve for x
    x = 11,739,234,628.92/92,894.88
  6. Step 6: Final answer
    x = 126,371.17

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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.