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Finding the Fourth Proportional to 77,955.23, 107,581.34 and 43,502.97

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Solution

The fourth proportional to 77,955.23, 107,581.34 and 43,502.97 is: 60,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,955.23 : 107,581.34 = 43,502.97 : x
  2. Step 2: Convert to fraction form
    77,955.23/107,581.34 = 43,502.97/x
  3. Step 3: Cross multiply
    77,955.23x = 107,581.34 × 43,502.97
  4. Step 4: Simplify right side
    77,955.23x = 4,680,107,806.58
  5. Step 5: Solve for x
    x = 4,680,107,806.58/77,955.23
  6. Step 6: Final answer
    x = 60,035.84

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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.