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Finding the Fourth Proportional to 185,648.63, 256,173.80 and 103,965.48

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Solution

The fourth proportional to 185,648.63, 256,173.80 and 103,965.48 is: 143,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,648.63 : 256,173.80 = 103,965.48 : x
  2. Step 2: Convert to fraction form
    185,648.63/256,173.80 = 103,965.48/x
  3. Step 3: Cross multiply
    185,648.63x = 256,173.80 × 103,965.48
  4. Step 4: Simplify right side
    185,648.63x = 26,633,231,560.60
  5. Step 5: Solve for x
    x = 26,633,231,560.60/185,648.63
  6. Step 6: Final answer
    x = 143,460.43

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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.