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Finding the Fourth Proportional to 186,605.67, 257,515.83 and 101,722.80

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Solution

The fourth proportional to 186,605.67, 257,515.83 and 101,722.80 is: 140,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,605.67 : 257,515.83 = 101,722.80 : x
  2. Step 2: Convert to fraction form
    186,605.67/257,515.83 = 101,722.80/x
  3. Step 3: Cross multiply
    186,605.67x = 257,515.83 × 101,722.80
  4. Step 4: Simplify right side
    186,605.67x = 26,195,231,271.92
  5. Step 5: Solve for x
    x = 26,195,231,271.92/186,605.67
  6. Step 6: Final answer
    x = 140,377.47

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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.