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Finding the Fourth Proportional to 187,864.67, 281,796.32 and 45,708.30

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Solution

The fourth proportional to 187,864.67, 281,796.32 and 45,708.30 is: 68,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,864.67 : 281,796.32 = 45,708.30 : x
  2. Step 2: Convert to fraction form
    187,864.67/281,796.32 = 45,708.30/x
  3. Step 3: Cross multiply
    187,864.67x = 281,796.32 × 45,708.30
  4. Step 4: Simplify right side
    187,864.67x = 12,880,430,590.62
  5. Step 5: Solve for x
    x = 12,880,430,590.62/187,864.67
  6. Step 6: Final answer
    x = 68,562.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.