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Finding the Fourth Proportional to 494,618.76, 742,026.60 and 157,648.50

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Solution

The fourth proportional to 494,618.76, 742,026.60 and 157,648.50 is: 236,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,618.76 : 742,026.60 = 157,648.50 : x
  2. Step 2: Convert to fraction form
    494,618.76/742,026.60 = 157,648.50/x
  3. Step 3: Cross multiply
    494,618.76x = 742,026.60 × 157,648.50
  4. Step 4: Simplify right side
    494,618.76x = 116,979,380,450.10
  5. Step 5: Solve for x
    x = 116,979,380,450.10/494,618.76
  6. Step 6: Final answer
    x = 236,504.13

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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.