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Finding the Fourth Proportional to 77,804.40, 116,713.86 and 60,293.88

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Solution

The fourth proportional to 77,804.40, 116,713.86 and 60,293.88 is: 90,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,804.40 : 116,713.86 = 60,293.88 : x
  2. Step 2: Convert to fraction form
    77,804.40/116,713.86 = 60,293.88/x
  3. Step 3: Cross multiply
    77,804.40x = 116,713.86 × 60,293.88
  4. Step 4: Simplify right side
    77,804.40x = 7,037,131,469.18
  5. Step 5: Solve for x
    x = 7,037,131,469.18/77,804.40
  6. Step 6: Final answer
    x = 90,446.45

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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.