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Finding the Fourth Proportional to 117,093.85, 175,641.22 and 28,347.21

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Solution

The fourth proportional to 117,093.85, 175,641.22 and 28,347.21 is: 42,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,093.85 : 175,641.22 = 28,347.21 : x
  2. Step 2: Convert to fraction form
    117,093.85/175,641.22 = 28,347.21/x
  3. Step 3: Cross multiply
    117,093.85x = 175,641.22 × 28,347.21
  4. Step 4: Simplify right side
    117,093.85x = 4,978,938,548.00
  5. Step 5: Solve for x
    x = 4,978,938,548.00/117,093.85
  6. Step 6: Final answer
    x = 42,520.92

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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.