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Finding the Fourth Proportional to 78,757.66, 118,136.92 and 19,593.34

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Solution

The fourth proportional to 78,757.66, 118,136.92 and 19,593.34 is: 29,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,757.66 : 118,136.92 = 19,593.34 : x
  2. Step 2: Convert to fraction form
    78,757.66/118,136.92 = 19,593.34/x
  3. Step 3: Cross multiply
    78,757.66x = 118,136.92 × 19,593.34
  4. Step 4: Simplify right side
    78,757.66x = 2,314,696,840.11
  5. Step 5: Solve for x
    x = 2,314,696,840.11/78,757.66
  6. Step 6: Final answer
    x = 29,390.12

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1.5x scale

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.