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Finding the Fourth Proportional to 305,774.76, 458,134.02 and 165,631.80

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Solution

The fourth proportional to 305,774.76, 458,134.02 and 165,631.80 is: 248,161.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,774.76 : 458,134.02 = 165,631.80 : x
  2. Step 2: Convert to fraction form
    305,774.76/458,134.02 = 165,631.80/x
  3. Step 3: Cross multiply
    305,774.76x = 458,134.02 × 165,631.80
  4. Step 4: Simplify right side
    305,774.76x = 75,881,562,373.84
  5. Step 5: Solve for x
    x = 75,881,562,373.84/305,774.76
  6. Step 6: Final answer
    x = 248,161.63

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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.