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Finding the Fourth Proportional to 186,649.50, 257,580.39 and 101,766.90

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Solution

The fourth proportional to 186,649.50, 257,580.39 and 101,766.90 is: 140,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,649.50 : 257,580.39 = 101,766.90 : x
  2. Step 2: Convert to fraction form
    186,649.50/257,580.39 = 101,766.90/x
  3. Step 3: Cross multiply
    186,649.50x = 257,580.39 × 101,766.90
  4. Step 4: Simplify right side
    186,649.50x = 26,213,157,791.09
  5. Step 5: Solve for x
    x = 26,213,157,791.09/186,649.50
  6. Step 6: Final answer
    x = 140,440.55

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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.