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Finding the Fourth Proportional to 517,818.66, 776,755.66 and 162,860.36

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Solution

The fourth proportional to 517,818.66, 776,755.66 and 162,860.36 is: 244,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,818.66 : 776,755.66 = 162,860.36 : x
  2. Step 2: Convert to fraction form
    517,818.66/776,755.66 = 162,860.36/x
  3. Step 3: Cross multiply
    517,818.66x = 776,755.66 × 162,860.36
  4. Step 4: Simplify right side
    517,818.66x = 126,502,703,121.14
  5. Step 5: Solve for x
    x = 126,502,703,121.14/517,818.66
  6. Step 6: Final answer
    x = 244,299.24

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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.