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Finding the Fourth Proportional to 117,595.57, 162,279.15 and 63,879.40

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Solution

The fourth proportional to 117,595.57, 162,279.15 and 63,879.40 is: 88,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,595.57 : 162,279.15 = 63,879.40 : x
  2. Step 2: Convert to fraction form
    117,595.57/162,279.15 = 63,879.40/x
  3. Step 3: Cross multiply
    117,595.57x = 162,279.15 × 63,879.40
  4. Step 4: Simplify right side
    117,595.57x = 10,366,294,734.51
  5. Step 5: Solve for x
    x = 10,366,294,734.51/117,595.57
  6. Step 6: Final answer
    x = 88,152.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.