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Finding the Fourth Proportional to 158,294.92, 218,446.94 and 86,674.92

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Solution

The fourth proportional to 158,294.92, 218,446.94 and 86,674.92 is: 119,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,294.92 : 218,446.94 = 86,674.92 : x
  2. Step 2: Convert to fraction form
    158,294.92/218,446.94 = 86,674.92/x
  3. Step 3: Cross multiply
    158,294.92x = 218,446.94 × 86,674.92
  4. Step 4: Simplify right side
    158,294.92x = 18,933,871,048.74
  5. Step 5: Solve for x
    x = 18,933,871,048.74/158,294.92
  6. Step 6: Final answer
    x = 119,611.36

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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.