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Finding the Fourth Proportional to 186,650.63, 257,578.13 and 101,767.70

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Solution

The fourth proportional to 186,650.63, 257,578.13 and 101,767.70 is: 140,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,650.63 : 257,578.13 = 101,767.70 : x
  2. Step 2: Convert to fraction form
    186,650.63/257,578.13 = 101,767.70/x
  3. Step 3: Cross multiply
    186,650.63x = 257,578.13 × 101,767.70
  4. Step 4: Simplify right side
    186,650.63x = 26,213,133,860.40
  5. Step 5: Solve for x
    x = 26,213,133,860.40/186,650.63
  6. Step 6: Final answer
    x = 140,439.57

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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.