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Finding the Fourth Proportional to 117,537.96, 176,545.68 and 103,809

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Solution

The fourth proportional to 117,537.96, 176,545.68 and 103,809 is: 155,924.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,537.96 : 176,545.68 = 103,809 : x
  2. Step 2: Convert to fraction form
    117,537.96/176,545.68 = 103,809/x
  3. Step 3: Cross multiply
    117,537.96x = 176,545.68 × 103,809
  4. Step 4: Simplify right side
    117,537.96x = 18,327,030,495.12
  5. Step 5: Solve for x
    x = 18,327,030,495.12/117,537.96
  6. Step 6: Final answer
    x = 155,924.35

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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.