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Finding the Fourth Proportional to 187,366, 281,028.30 and 47,124.68

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Solution

The fourth proportional to 187,366, 281,028.30 and 47,124.68 is: 70,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,366 : 281,028.30 = 47,124.68 : x
  2. Step 2: Convert to fraction form
    187,366/281,028.30 = 47,124.68/x
  3. Step 3: Cross multiply
    187,366x = 281,028.30 × 47,124.68
  4. Step 4: Simplify right side
    187,366x = 13,243,368,708.44
  5. Step 5: Solve for x
    x = 13,243,368,708.44/187,366
  6. Step 6: Final answer
    x = 70,681.81

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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.