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Finding the Fourth Proportional to 177,928.64, 266,881.44 and 67,117.76

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Solution

The fourth proportional to 177,928.64, 266,881.44 and 67,117.76 is: 100,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,928.64 : 266,881.44 = 67,117.76 : x
  2. Step 2: Convert to fraction form
    177,928.64/266,881.44 = 67,117.76/x
  3. Step 3: Cross multiply
    177,928.64x = 266,881.44 × 67,117.76
  4. Step 4: Simplify right side
    177,928.64x = 17,912,484,438.37
  5. Step 5: Solve for x
    x = 17,912,484,438.37/177,928.64
  6. Step 6: Final answer
    x = 100,672.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.