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Finding the Fourth Proportional to 552,521.64, 828,700.34 and 153,120.77

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Solution

The fourth proportional to 552,521.64, 828,700.34 and 153,120.77 is: 229,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,521.64 : 828,700.34 = 153,120.77 : x
  2. Step 2: Convert to fraction form
    552,521.64/828,700.34 = 153,120.77/x
  3. Step 3: Cross multiply
    552,521.64x = 828,700.34 × 153,120.77
  4. Step 4: Simplify right side
    552,521.64x = 126,891,229,250.96
  5. Step 5: Solve for x
    x = 126,891,229,250.96/552,521.64
  6. Step 6: Final answer
    x = 229,658.39

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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.