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Finding the Fourth Proportional to 334,078.39, 500,879.49 and 156,488.50

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Solution

The fourth proportional to 334,078.39, 500,879.49 and 156,488.50 is: 234,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,078.39 : 500,879.49 = 156,488.50 : x
  2. Step 2: Convert to fraction form
    334,078.39/500,879.49 = 156,488.50/x
  3. Step 3: Cross multiply
    334,078.39x = 500,879.49 × 156,488.50
  4. Step 4: Simplify right side
    334,078.39x = 78,381,880,070.87
  5. Step 5: Solve for x
    x = 78,381,880,070.87/334,078.39
  6. Step 6: Final answer
    x = 234,621.22

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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.