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Finding the Fourth Proportional to 201,781.48, 302,567.14 and 75,317.74

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Solution

The fourth proportional to 201,781.48, 302,567.14 and 75,317.74 is: 112,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,781.48 : 302,567.14 = 75,317.74 : x
  2. Step 2: Convert to fraction form
    201,781.48/302,567.14 = 75,317.74/x
  3. Step 3: Cross multiply
    201,781.48x = 302,567.14 × 75,317.74
  4. Step 4: Simplify right side
    201,781.48x = 22,788,673,183.06
  5. Step 5: Solve for x
    x = 22,788,673,183.06/201,781.48
  6. Step 6: Final answer
    x = 112,937.39

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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.