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Finding the Fourth Proportional to 519,866.75, 779,874.51 and 160,068.05

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Solution

The fourth proportional to 519,866.75, 779,874.51 and 160,068.05 is: 240,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,866.75 : 779,874.51 = 160,068.05 : x
  2. Step 2: Convert to fraction form
    519,866.75/779,874.51 = 160,068.05/x
  3. Step 3: Cross multiply
    519,866.75x = 779,874.51 × 160,068.05
  4. Step 4: Simplify right side
    519,866.75x = 124,832,988,161.03
  5. Step 5: Solve for x
    x = 124,832,988,161.03/519,866.75
  6. Step 6: Final answer
    x = 240,124.97

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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.