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Finding the Fourth Proportional to 117,528.92, 162,189.92 and 63,813.98

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Solution

The fourth proportional to 117,528.92, 162,189.92 and 63,813.98 is: 88,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,528.92 : 162,189.92 = 63,813.98 : x
  2. Step 2: Convert to fraction form
    117,528.92/162,189.92 = 63,813.98/x
  3. Step 3: Cross multiply
    117,528.92x = 162,189.92 × 63,813.98
  4. Step 4: Simplify right side
    117,528.92x = 10,349,983,659.67
  5. Step 5: Solve for x
    x = 10,349,983,659.67/117,528.92
  6. Step 6: Final answer
    x = 88,063.29

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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.