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Finding the Fourth Proportional to 552,115.80, 828,288.90 and 178,176.60

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Solution

The fourth proportional to 552,115.80, 828,288.90 and 178,176.60 is: 267,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,115.80 : 828,288.90 = 178,176.60 : x
  2. Step 2: Convert to fraction form
    552,115.80/828,288.90 = 178,176.60/x
  3. Step 3: Cross multiply
    552,115.80x = 828,288.90 × 178,176.60
  4. Step 4: Simplify right side
    552,115.80x = 147,581,700,019.74
  5. Step 5: Solve for x
    x = 147,581,700,019.74/552,115.80
  6. Step 6: Final answer
    x = 267,302.08

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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.