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Finding the Fourth Proportional to 552,086.90, 828,130.70 and 173,037.20

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Solution

The fourth proportional to 552,086.90, 828,130.70 and 173,037.20 is: 259,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,086.90 : 828,130.70 = 173,037.20 : x
  2. Step 2: Convert to fraction form
    552,086.90/828,130.70 = 173,037.20/x
  3. Step 3: Cross multiply
    552,086.90x = 828,130.70 × 173,037.20
  4. Step 4: Simplify right side
    552,086.90x = 143,297,417,562.04
  5. Step 5: Solve for x
    x = 143,297,417,562.04/552,086.90
  6. Step 6: Final answer
    x = 259,555.91

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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.