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Finding the Fourth Proportional to 187,866.99, 259,274.40 and 107,306.55

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Solution

The fourth proportional to 187,866.99, 259,274.40 and 107,306.55 is: 148,093.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,866.99 : 259,274.40 = 107,306.55 : x
  2. Step 2: Convert to fraction form
    187,866.99/259,274.40 = 107,306.55/x
  3. Step 3: Cross multiply
    187,866.99x = 259,274.40 × 107,306.55
  4. Step 4: Simplify right side
    187,866.99x = 27,821,841,367.32
  5. Step 5: Solve for x
    x = 27,821,841,367.32/187,866.99
  6. Step 6: Final answer
    x = 148,093.29

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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.