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Finding the Fourth Proportional to 187,398.76, 258,694.74 and 119,506.84

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Solution

The fourth proportional to 187,398.76, 258,694.74 and 119,506.84 is: 164,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,398.76 : 258,694.74 = 119,506.84 : x
  2. Step 2: Convert to fraction form
    187,398.76/258,694.74 = 119,506.84/x
  3. Step 3: Cross multiply
    187,398.76x = 258,694.74 × 119,506.84
  4. Step 4: Simplify right side
    187,398.76x = 30,915,790,902.02
  5. Step 5: Solve for x
    x = 30,915,790,902.02/187,398.76
  6. Step 6: Final answer
    x = 164,973.29

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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.