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Finding the Fourth Proportional to 117,641.51, 162,346.28 and 63,926.57

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Solution

The fourth proportional to 117,641.51, 162,346.28 and 63,926.57 is: 88,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.51 : 162,346.28 = 63,926.57 : x
  2. Step 2: Convert to fraction form
    117,641.51/162,346.28 = 63,926.57/x
  3. Step 3: Cross multiply
    117,641.51x = 162,346.28 × 63,926.57
  4. Step 4: Simplify right side
    117,641.51x = 10,378,240,005.69
  5. Step 5: Solve for x
    x = 10,378,240,005.69/117,641.51
  6. Step 6: Final answer
    x = 88,219.20

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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.