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Finding the Fourth Proportional to 77,646.42, 107,151.53 and 44,112.42

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Solution

The fourth proportional to 77,646.42, 107,151.53 and 44,112.42 is: 60,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,646.42 : 107,151.53 = 44,112.42 : x
  2. Step 2: Convert to fraction form
    77,646.42/107,151.53 = 44,112.42/x
  3. Step 3: Cross multiply
    77,646.42x = 107,151.53 × 44,112.42
  4. Step 4: Simplify right side
    77,646.42x = 4,726,713,074.44
  5. Step 5: Solve for x
    x = 4,726,713,074.44/77,646.42
  6. Step 6: Final answer
    x = 60,874.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.