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Finding the Fourth Proportional to 324,547.31, 486,867.03 and 99,926.41

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Solution

The fourth proportional to 324,547.31, 486,867.03 and 99,926.41 is: 149,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,547.31 : 486,867.03 = 99,926.41 : x
  2. Step 2: Convert to fraction form
    324,547.31/486,867.03 = 99,926.41/x
  3. Step 3: Cross multiply
    324,547.31x = 486,867.03 × 99,926.41
  4. Step 4: Simplify right side
    324,547.31x = 48,650,873,238.09
  5. Step 5: Solve for x
    x = 48,650,873,238.09/324,547.31
  6. Step 6: Final answer
    x = 149,903.80

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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.