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Finding the Fourth Proportional to 155,336.76, 214,404.44 and 91,695.06

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Solution

The fourth proportional to 155,336.76, 214,404.44 and 91,695.06 is: 126,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,336.76 : 214,404.44 = 91,695.06 : x
  2. Step 2: Convert to fraction form
    155,336.76/214,404.44 = 91,695.06/x
  3. Step 3: Cross multiply
    155,336.76x = 214,404.44 × 91,695.06
  4. Step 4: Simplify right side
    155,336.76x = 19,659,827,531.59
  5. Step 5: Solve for x
    x = 19,659,827,531.59/155,336.76
  6. Step 6: Final answer
    x = 126,562.62

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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.