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Finding the Fourth Proportional to 118,305.30, 177,584.31 and 65,700.66

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Solution

The fourth proportional to 118,305.30, 177,584.31 and 65,700.66 is: 98,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.30 : 177,584.31 = 65,700.66 : x
  2. Step 2: Convert to fraction form
    118,305.30/177,584.31 = 65,700.66/x
  3. Step 3: Cross multiply
    118,305.30x = 177,584.31 × 65,700.66
  4. Step 4: Simplify right side
    118,305.30x = 11,667,406,372.64
  5. Step 5: Solve for x
    x = 11,667,406,372.64/118,305.30
  6. Step 6: Final answer
    x = 98,621.16

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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.