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Finding the Fourth Proportional to 117,492.82, 162,135.68 and 63,776.68

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Solution

The fourth proportional to 117,492.82, 162,135.68 and 63,776.68 is: 88,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,492.82 : 162,135.68 = 63,776.68 : x
  2. Step 2: Convert to fraction form
    117,492.82/162,135.68 = 63,776.68/x
  3. Step 3: Cross multiply
    117,492.82x = 162,135.68 × 63,776.68
  4. Step 4: Simplify right side
    117,492.82x = 10,340,475,379.94
  5. Step 5: Solve for x
    x = 10,340,475,379.94/117,492.82
  6. Step 6: Final answer
    x = 88,009.42

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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.