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Finding the Fourth Proportional to 185,648.40, 256,187.92 and 100,763.64

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Solution

The fourth proportional to 185,648.40, 256,187.92 and 100,763.64 is: 139,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,648.40 : 256,187.92 = 100,763.64 : x
  2. Step 2: Convert to fraction form
    185,648.40/256,187.92 = 100,763.64/x
  3. Step 3: Cross multiply
    185,648.40x = 256,187.92 × 100,763.64
  4. Step 4: Simplify right side
    185,648.40x = 25,814,427,343.23
  5. Step 5: Solve for x
    x = 25,814,427,343.23/185,648.40
  6. Step 6: Final answer
    x = 139,050.09

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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.