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Finding the Fourth Proportional to 117,543.12, 162,208.96 and 63,827.68

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Solution

The fourth proportional to 117,543.12, 162,208.96 and 63,827.68 is: 88,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,543.12 : 162,208.96 = 63,827.68 : x
  2. Step 2: Convert to fraction form
    117,543.12/162,208.96 = 63,827.68/x
  3. Step 3: Cross multiply
    117,543.12x = 162,208.96 × 63,827.68
  4. Step 4: Simplify right side
    117,543.12x = 10,353,421,592.01
  5. Step 5: Solve for x
    x = 10,353,421,592.01/117,543.12
  6. Step 6: Final answer
    x = 88,081.90

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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.