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Finding the Fourth Proportional to 177,793.39, 266,731.40 and 51,428.53

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Solution

The fourth proportional to 177,793.39, 266,731.40 and 51,428.53 is: 77,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,793.39 : 266,731.40 = 51,428.53 : x
  2. Step 2: Convert to fraction form
    177,793.39/266,731.40 = 51,428.53/x
  3. Step 3: Cross multiply
    177,793.39x = 266,731.40 × 51,428.53
  4. Step 4: Simplify right side
    177,793.39x = 13,717,603,806.84
  5. Step 5: Solve for x
    x = 13,717,603,806.84/177,793.39
  6. Step 6: Final answer
    x = 77,154.75

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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.