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Finding the Fourth Proportional to 187,653.85, 258,980.80 and 107,093.50

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Solution

The fourth proportional to 187,653.85, 258,980.80 and 107,093.50 is: 147,799.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,653.85 : 258,980.80 = 107,093.50 : x
  2. Step 2: Convert to fraction form
    187,653.85/258,980.80 = 107,093.50/x
  3. Step 3: Cross multiply
    187,653.85x = 258,980.80 × 107,093.50
  4. Step 4: Simplify right side
    187,653.85x = 27,735,160,304.80
  5. Step 5: Solve for x
    x = 27,735,160,304.80/187,653.85
  6. Step 6: Final answer
    x = 147,799.58

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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.