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Finding the Fourth Proportional to 117,051.52, 161,529.88 and 63,335.36

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Solution

The fourth proportional to 117,051.52, 161,529.88 and 63,335.36 is: 87,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,051.52 : 161,529.88 = 63,335.36 : x
  2. Step 2: Convert to fraction form
    117,051.52/161,529.88 = 63,335.36/x
  3. Step 3: Cross multiply
    117,051.52x = 161,529.88 × 63,335.36
  4. Step 4: Simplify right side
    117,051.52x = 10,230,553,100.56
  5. Step 5: Solve for x
    x = 10,230,553,100.56/117,051.52
  6. Step 6: Final answer
    x = 87,402.14

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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.