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Finding the Fourth Proportional to 347,522.31, 521,326.40 and 122,836.41

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Solution

The fourth proportional to 347,522.31, 521,326.40 and 122,836.41 is: 184,269.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,522.31 : 521,326.40 = 122,836.41 : x
  2. Step 2: Convert to fraction form
    347,522.31/521,326.40 = 122,836.41/x
  3. Step 3: Cross multiply
    347,522.31x = 521,326.40 × 122,836.41
  4. Step 4: Simplify right side
    347,522.31x = 64,037,862,800.04
  5. Step 5: Solve for x
    x = 64,037,862,800.04/347,522.31
  6. Step 6: Final answer
    x = 184,269.79

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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.