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Finding the Fourth Proportional to 186,103.20, 256,809.78 and 101,218.44

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Solution

The fourth proportional to 186,103.20, 256,809.78 and 101,218.44 is: 139,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,103.20 : 256,809.78 = 101,218.44 : x
  2. Step 2: Convert to fraction form
    186,103.20/256,809.78 = 101,218.44/x
  3. Step 3: Cross multiply
    186,103.20x = 256,809.78 × 101,218.44
  4. Step 4: Simplify right side
    186,103.20x = 25,993,885,308.34
  5. Step 5: Solve for x
    x = 25,993,885,308.34/186,103.20
  6. Step 6: Final answer
    x = 139,674.57

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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.