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Finding the Fourth Proportional to 187,658.73, 258,904.71 and 107,028.27

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Solution

The fourth proportional to 187,658.73, 258,904.71 and 107,028.27 is: 147,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,658.73 : 258,904.71 = 107,028.27 : x
  2. Step 2: Convert to fraction form
    187,658.73/258,904.71 = 107,028.27/x
  3. Step 3: Cross multiply
    187,658.73x = 258,904.71 × 107,028.27
  4. Step 4: Simplify right side
    187,658.73x = 27,710,123,206.15
  5. Step 5: Solve for x
    x = 27,710,123,206.15/187,658.73
  6. Step 6: Final answer
    x = 147,662.32

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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.