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Finding the Fourth Proportional to 185,855.17, 256,479.46 and 100,971.49

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Solution

The fourth proportional to 185,855.17, 256,479.46 and 100,971.49 is: 139,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.17 : 256,479.46 = 100,971.49 : x
  2. Step 2: Convert to fraction form
    185,855.17/256,479.46 = 100,971.49/x
  3. Step 3: Cross multiply
    185,855.17x = 256,479.46 × 100,971.49
  4. Step 4: Simplify right side
    185,855.17x = 25,897,113,230.60
  5. Step 5: Solve for x
    x = 25,897,113,230.60/185,855.17
  6. Step 6: Final answer
    x = 139,340.29

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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.