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Finding the Fourth Proportional to 117,305.60, 176,044.80 and 47,235.20

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Solution

The fourth proportional to 117,305.60, 176,044.80 and 47,235.20 is: 70,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,305.60 : 176,044.80 = 47,235.20 : x
  2. Step 2: Convert to fraction form
    117,305.60/176,044.80 = 47,235.20/x
  3. Step 3: Cross multiply
    117,305.60x = 176,044.80 × 47,235.20
  4. Step 4: Simplify right side
    117,305.60x = 8,315,511,336.96
  5. Step 5: Solve for x
    x = 8,315,511,336.96/117,305.60
  6. Step 6: Final answer
    x = 70,887.59

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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.