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Finding the Fourth Proportional to 334,076.70, 501,115.05 and 156,929.70

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Solution

The fourth proportional to 334,076.70, 501,115.05 and 156,929.70 is: 235,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,076.70 : 501,115.05 = 156,929.70 : x
  2. Step 2: Convert to fraction form
    334,076.70/501,115.05 = 156,929.70/x
  3. Step 3: Cross multiply
    334,076.70x = 501,115.05 × 156,929.70
  4. Step 4: Simplify right side
    334,076.70x = 78,639,834,461.99
  5. Step 5: Solve for x
    x = 78,639,834,461.99/334,076.70
  6. Step 6: Final answer
    x = 235,394.55

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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.