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Finding the Fourth Proportional to 99,445.93, 149,146.11 and 28,367.22

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Solution

The fourth proportional to 99,445.93, 149,146.11 and 28,367.22 is: 42,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,445.93 : 149,146.11 = 28,367.22 : x
  2. Step 2: Convert to fraction form
    99,445.93/149,146.11 = 28,367.22/x
  3. Step 3: Cross multiply
    99,445.93x = 149,146.11 × 28,367.22
  4. Step 4: Simplify right side
    99,445.93x = 4,230,860,514.51
  5. Step 5: Solve for x
    x = 4,230,860,514.51/99,445.93
  6. Step 6: Final answer
    x = 42,544.33

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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.