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Finding the Fourth Proportional to 91,392.96, 126,123.96 and 55,584.48

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Solution

The fourth proportional to 91,392.96, 126,123.96 and 55,584.48 is: 76,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,392.96 : 126,123.96 = 55,584.48 : x
  2. Step 2: Convert to fraction form
    91,392.96/126,123.96 = 55,584.48/x
  3. Step 3: Cross multiply
    91,392.96x = 126,123.96 × 55,584.48
  4. Step 4: Simplify right side
    91,392.96x = 7,010,534,732.14
  5. Step 5: Solve for x
    x = 7,010,534,732.14/91,392.96
  6. Step 6: Final answer
    x = 76,707.60

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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.