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Finding the Fourth Proportional to 185,803.04, 256,401.24 and 100,917.20

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Solution

The fourth proportional to 185,803.04, 256,401.24 and 100,917.20 is: 139,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,803.04 : 256,401.24 = 100,917.20 : x
  2. Step 2: Convert to fraction form
    185,803.04/256,401.24 = 100,917.20/x
  3. Step 3: Cross multiply
    185,803.04x = 256,401.24 × 100,917.20
  4. Step 4: Simplify right side
    185,803.04x = 25,875,295,217.33
  5. Step 5: Solve for x
    x = 25,875,295,217.33/185,803.04
  6. Step 6: Final answer
    x = 139,261.96

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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.