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Finding the Fourth Proportional to 152,230.98, 228,484.96 and 81,213.82

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Solution

The fourth proportional to 152,230.98, 228,484.96 and 81,213.82 is: 121,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,230.98 : 228,484.96 = 81,213.82 : x
  2. Step 2: Convert to fraction form
    152,230.98/228,484.96 = 81,213.82/x
  3. Step 3: Cross multiply
    152,230.98x = 228,484.96 × 81,213.82
  4. Step 4: Simplify right side
    152,230.98x = 18,556,136,414.15
  5. Step 5: Solve for x
    x = 18,556,136,414.15/152,230.98
  6. Step 6: Final answer
    x = 121,894.61

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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.