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Finding the Fourth Proportional to 77,809.68, 116,527.40 and 44,428.57

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Solution

The fourth proportional to 77,809.68, 116,527.40 and 44,428.57 is: 66,536.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,809.68 : 116,527.40 = 44,428.57 : x
  2. Step 2: Convert to fraction form
    77,809.68/116,527.40 = 44,428.57/x
  3. Step 3: Cross multiply
    77,809.68x = 116,527.40 × 44,428.57
  4. Step 4: Simplify right side
    77,809.68x = 5,177,145,747.82
  5. Step 5: Solve for x
    x = 5,177,145,747.82/77,809.68
  6. Step 6: Final answer
    x = 66,536.01

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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.