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Finding the Fourth Proportional to 77,580.94, 107,061.80 and 44,046.94

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Solution

The fourth proportional to 77,580.94, 107,061.80 and 44,046.94 is: 60,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,580.94 : 107,061.80 = 44,046.94 : x
  2. Step 2: Convert to fraction form
    77,580.94/107,061.80 = 44,046.94/x
  3. Step 3: Cross multiply
    77,580.94x = 107,061.80 × 44,046.94
  4. Step 4: Simplify right side
    77,580.94x = 4,715,744,680.89
  5. Step 5: Solve for x
    x = 4,715,744,680.89/77,580.94
  6. Step 6: Final answer
    x = 60,784.84

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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.