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Finding the Fourth Proportional to 228,924.60, 343,419.30 and 71,136.60

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Solution

The fourth proportional to 228,924.60, 343,419.30 and 71,136.60 is: 106,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,924.60 : 343,419.30 = 71,136.60 : x
  2. Step 2: Convert to fraction form
    228,924.60/343,419.30 = 71,136.60/x
  3. Step 3: Cross multiply
    228,924.60x = 343,419.30 × 71,136.60
  4. Step 4: Simplify right side
    228,924.60x = 24,429,681,376.38
  5. Step 5: Solve for x
    x = 24,429,681,376.38/228,924.60
  6. Step 6: Final answer
    x = 106,714.97

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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.