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Finding the Fourth Proportional to 114,555.60, 171,959.13 and 91,014.48

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Solution

The fourth proportional to 114,555.60, 171,959.13 and 91,014.48 is: 136,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,555.60 : 171,959.13 = 91,014.48 : x
  2. Step 2: Convert to fraction form
    114,555.60/171,959.13 = 91,014.48/x
  3. Step 3: Cross multiply
    114,555.60x = 171,959.13 × 91,014.48
  4. Step 4: Simplify right side
    114,555.60x = 15,650,770,798.20
  5. Step 5: Solve for x
    x = 15,650,770,798.20/114,555.60
  6. Step 6: Final answer
    x = 136,621.61

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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.