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Finding the Fourth Proportional to 334,086.70, 501,130.05 and 156,939.70

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Solution

The fourth proportional to 334,086.70, 501,130.05 and 156,939.70 is: 235,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,086.70 : 501,130.05 = 156,939.70 : x
  2. Step 2: Convert to fraction form
    334,086.70/501,130.05 = 156,939.70/x
  3. Step 3: Cross multiply
    334,086.70x = 501,130.05 × 156,939.70
  4. Step 4: Simplify right side
    334,086.70x = 78,647,199,707.99
  5. Step 5: Solve for x
    x = 78,647,199,707.99/334,086.70
  6. Step 6: Final answer
    x = 235,409.55

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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.