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Finding the Fourth Proportional to 552,378.36, 828,432.90 and 153,008.76

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Solution

The fourth proportional to 552,378.36, 828,432.90 and 153,008.76 is: 229,475.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,378.36 : 828,432.90 = 153,008.76 : x
  2. Step 2: Convert to fraction form
    552,378.36/828,432.90 = 153,008.76/x
  3. Step 3: Cross multiply
    552,378.36x = 828,432.90 × 153,008.76
  4. Step 4: Simplify right side
    552,378.36x = 126,757,490,772.20
  5. Step 5: Solve for x
    x = 126,757,490,772.20/552,378.36
  6. Step 6: Final answer
    x = 229,475.84

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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.