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Finding the Fourth Proportional to 187,093.77, 280,751.39 and 68,848.16

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Solution

The fourth proportional to 187,093.77, 280,751.39 and 68,848.16 is: 103,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,093.77 : 280,751.39 = 68,848.16 : x
  2. Step 2: Convert to fraction form
    187,093.77/280,751.39 = 68,848.16/x
  3. Step 3: Cross multiply
    187,093.77x = 280,751.39 × 68,848.16
  4. Step 4: Simplify right side
    187,093.77x = 19,329,214,870.94
  5. Step 5: Solve for x
    x = 19,329,214,870.94/187,093.77
  6. Step 6: Final answer
    x = 103,312.98

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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.