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Finding the Fourth Proportional to 77,647.42, 107,152.90 and 44,113.42

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Solution

The fourth proportional to 77,647.42, 107,152.90 and 44,113.42 is: 60,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,647.42 : 107,152.90 = 44,113.42 : x
  2. Step 2: Convert to fraction form
    77,647.42/107,152.90 = 44,113.42/x
  3. Step 3: Cross multiply
    77,647.42x = 107,152.90 × 44,113.42
  4. Step 4: Simplify right side
    77,647.42x = 4,726,880,881.92
  5. Step 5: Solve for x
    x = 4,726,880,881.92/77,647.42
  6. Step 6: Final answer
    x = 60,876.21

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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.