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Finding the Fourth Proportional to 187,455.46, 281,184.28 and 76,647.46

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Solution

The fourth proportional to 187,455.46, 281,184.28 and 76,647.46 is: 114,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,455.46 : 281,184.28 = 76,647.46 : x
  2. Step 2: Convert to fraction form
    187,455.46/281,184.28 = 76,647.46/x
  3. Step 3: Cross multiply
    187,455.46x = 281,184.28 × 76,647.46
  4. Step 4: Simplify right side
    187,455.46x = 21,552,060,853.93
  5. Step 5: Solve for x
    x = 21,552,060,853.93/187,455.46
  6. Step 6: Final answer
    x = 114,971.64

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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.