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Finding the Fourth Proportional to 334,428.15, 501,806.25 and 156,949.59

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Solution

The fourth proportional to 334,428.15, 501,806.25 and 156,949.59 is: 235,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,428.15 : 501,806.25 = 156,949.59 : x
  2. Step 2: Convert to fraction form
    334,428.15/501,806.25 = 156,949.59/x
  3. Step 3: Cross multiply
    334,428.15x = 501,806.25 × 156,949.59
  4. Step 4: Simplify right side
    334,428.15x = 78,758,285,196.94
  5. Step 5: Solve for x
    x = 78,758,285,196.94/334,428.15
  6. Step 6: Final answer
    x = 235,501.36

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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.