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Finding the Fourth Proportional to 344,869.84, 517,326.62 and 108,221.86

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Solution

The fourth proportional to 344,869.84, 517,326.62 and 108,221.86 is: 162,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,869.84 : 517,326.62 = 108,221.86 : x
  2. Step 2: Convert to fraction form
    344,869.84/517,326.62 = 108,221.86/x
  3. Step 3: Cross multiply
    344,869.84x = 517,326.62 × 108,221.86
  4. Step 4: Simplify right side
    344,869.84x = 55,986,046,457.28
  5. Step 5: Solve for x
    x = 55,986,046,457.28/344,869.84
  6. Step 6: Final answer
    x = 162,339.64

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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.