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Finding the Fourth Proportional to 185,293.52, 255,705.39 and 100,410.58

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Solution

The fourth proportional to 185,293.52, 255,705.39 and 100,410.58 is: 138,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,293.52 : 255,705.39 = 100,410.58 : x
  2. Step 2: Convert to fraction form
    185,293.52/255,705.39 = 100,410.58/x
  3. Step 3: Cross multiply
    185,293.52x = 255,705.39 × 100,410.58
  4. Step 4: Simplify right side
    185,293.52x = 25,675,526,519.03
  5. Step 5: Solve for x
    x = 25,675,526,519.03/185,293.52
  6. Step 6: Final answer
    x = 138,566.78

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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.