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Finding the Fourth Proportional to 334,425.85, 501,638.78 and 156,950.80

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Solution

The fourth proportional to 334,425.85, 501,638.78 and 156,950.80 is: 235,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,425.85 : 501,638.78 = 156,950.80 : x
  2. Step 2: Convert to fraction form
    334,425.85/501,638.78 = 156,950.80/x
  3. Step 3: Cross multiply
    334,425.85x = 501,638.78 × 156,950.80
  4. Step 4: Simplify right side
    334,425.85x = 78,732,607,832.02
  5. Step 5: Solve for x
    x = 78,732,607,832.02/334,425.85
  6. Step 6: Final answer
    x = 235,426.20

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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.