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Finding the Fourth Proportional to 117,653.93, 162,363.45 and 63,938.94

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Solution

The fourth proportional to 117,653.93, 162,363.45 and 63,938.94 is: 88,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,653.93 : 162,363.45 = 63,938.94 : x
  2. Step 2: Convert to fraction form
    117,653.93/162,363.45 = 63,938.94/x
  3. Step 3: Cross multiply
    117,653.93x = 162,363.45 × 63,938.94
  4. Step 4: Simplify right side
    117,653.93x = 10,381,346,887.74
  5. Step 5: Solve for x
    x = 10,381,346,887.74/117,653.93
  6. Step 6: Final answer
    x = 88,236.30

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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.