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Finding the Fourth Proportional to 333,538.18, 500,386.95 and 108,899.06

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Solution

The fourth proportional to 333,538.18, 500,386.95 and 108,899.06 is: 163,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,538.18 : 500,386.95 = 108,899.06 : x
  2. Step 2: Convert to fraction form
    333,538.18/500,386.95 = 108,899.06/x
  3. Step 3: Cross multiply
    333,538.18x = 500,386.95 × 108,899.06
  4. Step 4: Simplify right side
    333,538.18x = 54,491,665,989.33
  5. Step 5: Solve for x
    x = 54,491,665,989.33/333,538.18
  6. Step 6: Final answer
    x = 163,374.60

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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.