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Finding the Fourth Proportional to 519,062.41, 778,117.94 and 181,919.28

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Solution

The fourth proportional to 519,062.41, 778,117.94 and 181,919.28 is: 272,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,062.41 : 778,117.94 = 181,919.28 : x
  2. Step 2: Convert to fraction form
    519,062.41/778,117.94 = 181,919.28/x
  3. Step 3: Cross multiply
    519,062.41x = 778,117.94 × 181,919.28
  4. Step 4: Simplify right side
    519,062.41x = 141,554,659,113.72
  5. Step 5: Solve for x
    x = 141,554,659,113.72/519,062.41
  6. Step 6: Final answer
    x = 272,712.21

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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.