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Finding the Fourth Proportional to 552,712.40, 828,955.20 and 153,252.80

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Solution

The fourth proportional to 552,712.40, 828,955.20 and 153,252.80 is: 229,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,712.40 : 828,955.20 = 153,252.80 : x
  2. Step 2: Convert to fraction form
    552,712.40/828,955.20 = 153,252.80/x
  3. Step 3: Cross multiply
    552,712.40x = 828,955.20 × 153,252.80
  4. Step 4: Simplify right side
    552,712.40x = 127,039,705,474.56
  5. Step 5: Solve for x
    x = 127,039,705,474.56/552,712.40
  6. Step 6: Final answer
    x = 229,847.76

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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.