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Finding the Fourth Proportional to 79,160.90, 118,640.55 and 32,360.90

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Solution

The fourth proportional to 79,160.90, 118,640.55 and 32,360.90 is: 48,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,160.90 : 118,640.55 = 32,360.90 : x
  2. Step 2: Convert to fraction form
    79,160.90/118,640.55 = 32,360.90/x
  3. Step 3: Cross multiply
    79,160.90x = 118,640.55 × 32,360.90
  4. Step 4: Simplify right side
    79,160.90x = 3,839,314,974.50
  5. Step 5: Solve for x
    x = 3,839,314,974.50/79,160.90
  6. Step 6: Final answer
    x = 48,500.14

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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.