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Finding the Fourth Proportional to 117,471.54, 162,113.91 and 63,756.66

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Solution

The fourth proportional to 117,471.54, 162,113.91 and 63,756.66 is: 87,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.54 : 162,113.91 = 63,756.66 : x
  2. Step 2: Convert to fraction form
    117,471.54/162,113.91 = 63,756.66/x
  3. Step 3: Cross multiply
    117,471.54x = 162,113.91 × 63,756.66
  4. Step 4: Simplify right side
    117,471.54x = 10,335,841,441.14
  5. Step 5: Solve for x
    x = 10,335,841,441.14/117,471.54
  6. Step 6: Final answer
    x = 87,985.92

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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.