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Finding the Fourth Proportional to 358,321.11, 537,559.42 and 108,996.63

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Solution

The fourth proportional to 358,321.11, 537,559.42 and 108,996.63 is: 163,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,321.11 : 537,559.42 = 108,996.63 : x
  2. Step 2: Convert to fraction form
    358,321.11/537,559.42 = 108,996.63/x
  3. Step 3: Cross multiply
    358,321.11x = 537,559.42 × 108,996.63
  4. Step 4: Simplify right side
    358,321.11x = 58,592,165,204.75
  5. Step 5: Solve for x
    x = 58,592,165,204.75/358,321.11
  6. Step 6: Final answer
    x = 163,518.60

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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.