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Finding the Fourth Proportional to 77,606.72, 107,096.64 and 44,072

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Solution

The fourth proportional to 77,606.72, 107,096.64 and 44,072 is: 60,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,606.72 : 107,096.64 = 44,072 : x
  2. Step 2: Convert to fraction form
    77,606.72/107,096.64 = 44,072/x
  3. Step 3: Cross multiply
    77,606.72x = 107,096.64 × 44,072
  4. Step 4: Simplify right side
    77,606.72x = 4,719,963,118.08
  5. Step 5: Solve for x
    x = 4,719,963,118.08/77,606.72
  6. Step 6: Final answer
    x = 60,819.00

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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.