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Finding the Fourth Proportional to 306,008.72, 458,836.50 and 118,801.52

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Solution

The fourth proportional to 306,008.72, 458,836.50 and 118,801.52 is: 178,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,008.72 : 458,836.50 = 118,801.52 : x
  2. Step 2: Convert to fraction form
    306,008.72/458,836.50 = 118,801.52/x
  3. Step 3: Cross multiply
    306,008.72x = 458,836.50 × 118,801.52
  4. Step 4: Simplify right side
    306,008.72x = 54,510,473,631.48
  5. Step 5: Solve for x
    x = 54,510,473,631.48/306,008.72
  6. Step 6: Final answer
    x = 178,133.73

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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.