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Finding the Fourth Proportional to 578,052.72, 867,101.76 and 178,657.92

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Solution

The fourth proportional to 578,052.72, 867,101.76 and 178,657.92 is: 267,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,052.72 : 867,101.76 = 178,657.92 : x
  2. Step 2: Convert to fraction form
    578,052.72/867,101.76 = 178,657.92/x
  3. Step 3: Cross multiply
    578,052.72x = 867,101.76 × 178,657.92
  4. Step 4: Simplify right side
    578,052.72x = 154,914,596,869.94
  5. Step 5: Solve for x
    x = 154,914,596,869.94/578,052.72
  6. Step 6: Final answer
    x = 267,993.89

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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.