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Finding the Fourth Proportional to 188,506.37, 260,132.20 and 103,622.83

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Solution

The fourth proportional to 188,506.37, 260,132.20 and 103,622.83 is: 142,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.37 : 260,132.20 = 103,622.83 : x
  2. Step 2: Convert to fraction form
    188,506.37/260,132.20 = 103,622.83/x
  3. Step 3: Cross multiply
    188,506.37x = 260,132.20 × 103,622.83
  4. Step 4: Simplify right side
    188,506.37x = 26,955,633,828.74
  5. Step 5: Solve for x
    x = 26,955,633,828.74/188,506.37
  6. Step 6: Final answer
    x = 142,995.88

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1.5x scale

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.