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Finding the Fourth Proportional to 185,682.36, 256,242.84 and 100,799.40

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Solution

The fourth proportional to 185,682.36, 256,242.84 and 100,799.40 is: 139,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,682.36 : 256,242.84 = 100,799.40 : x
  2. Step 2: Convert to fraction form
    185,682.36/256,242.84 = 100,799.40/x
  3. Step 3: Cross multiply
    185,682.36x = 256,242.84 × 100,799.40
  4. Step 4: Simplify right side
    185,682.36x = 25,829,124,526.30
  5. Step 5: Solve for x
    x = 25,829,124,526.30/185,682.36
  6. Step 6: Final answer
    x = 139,103.81

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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.