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Finding the Fourth Proportional to 158,472, 218,652.21 and 93,956.37

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Solution

The fourth proportional to 158,472, 218,652.21 and 93,956.37 is: 129,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,472 : 218,652.21 = 93,956.37 : x
  2. Step 2: Convert to fraction form
    158,472/218,652.21 = 93,956.37/x
  3. Step 3: Cross multiply
    158,472x = 218,652.21 × 93,956.37
  4. Step 4: Simplify right side
    158,472x = 20,543,767,944.08
  5. Step 5: Solve for x
    x = 20,543,767,944.08/158,472
  6. Step 6: Final answer
    x = 129,636.58

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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.