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Finding the Fourth Proportional to 104,448.60, 156,672.90 and 60,211.80

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Solution

The fourth proportional to 104,448.60, 156,672.90 and 60,211.80 is: 90,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,448.60 : 156,672.90 = 60,211.80 : x
  2. Step 2: Convert to fraction form
    104,448.60/156,672.90 = 60,211.80/x
  3. Step 3: Cross multiply
    104,448.60x = 156,672.90 × 60,211.80
  4. Step 4: Simplify right side
    104,448.60x = 9,433,557,320.22
  5. Step 5: Solve for x
    x = 9,433,557,320.22/104,448.60
  6. Step 6: Final answer
    x = 90,317.70

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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.