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Finding the Fourth Proportional to 79,248.90, 118,860.60 and 29,317.56

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Solution

The fourth proportional to 79,248.90, 118,860.60 and 29,317.56 is: 43,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,248.90 : 118,860.60 = 29,317.56 : x
  2. Step 2: Convert to fraction form
    79,248.90/118,860.60 = 29,317.56/x
  3. Step 3: Cross multiply
    79,248.90x = 118,860.60 × 29,317.56
  4. Step 4: Simplify right side
    79,248.90x = 3,484,702,772.14
  5. Step 5: Solve for x
    x = 3,484,702,772.14/79,248.90
  6. Step 6: Final answer
    x = 43,971.62

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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.