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Finding the Fourth Proportional to 264,003.31, 395,431.48 and 162,491.95

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Solution

The fourth proportional to 264,003.31, 395,431.48 and 162,491.95 is: 243,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,003.31 : 395,431.48 = 162,491.95 : x
  2. Step 2: Convert to fraction form
    264,003.31/395,431.48 = 162,491.95/x
  3. Step 3: Cross multiply
    264,003.31x = 395,431.48 × 162,491.95
  4. Step 4: Simplify right side
    264,003.31x = 64,254,432,973.99
  5. Step 5: Solve for x
    x = 64,254,432,973.99/264,003.31
  6. Step 6: Final answer
    x = 243,384.95

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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.