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Finding the Fourth Proportional to 399,364.52, 599,035.26 and 103,876.52

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Solution

The fourth proportional to 399,364.52, 599,035.26 and 103,876.52 is: 155,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,364.52 : 599,035.26 = 103,876.52 : x
  2. Step 2: Convert to fraction form
    399,364.52/599,035.26 = 103,876.52/x
  3. Step 3: Cross multiply
    399,364.52x = 599,035.26 × 103,876.52
  4. Step 4: Simplify right side
    399,364.52x = 62,225,698,166.10
  5. Step 5: Solve for x
    x = 62,225,698,166.10/399,364.52
  6. Step 6: Final answer
    x = 155,811.78

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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.