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Finding the Fourth Proportional to 187,613.39, 259,311.47 and 165,949.80

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Solution

The fourth proportional to 187,613.39, 259,311.47 and 165,949.80 is: 229,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,613.39 : 259,311.47 = 165,949.80 : x
  2. Step 2: Convert to fraction form
    187,613.39/259,311.47 = 165,949.80/x
  3. Step 3: Cross multiply
    187,613.39x = 259,311.47 × 165,949.80
  4. Step 4: Simplify right side
    187,613.39x = 43,032,684,782.04
  5. Step 5: Solve for x
    x = 43,032,684,782.04/187,613.39
  6. Step 6: Final answer
    x = 229,368.94

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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.