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Finding the Fourth Proportional to 117,484.44, 162,128.64 and 63,769.44

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Solution

The fourth proportional to 117,484.44, 162,128.64 and 63,769.44 is: 88,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,484.44 : 162,128.64 = 63,769.44 : x
  2. Step 2: Convert to fraction form
    117,484.44/162,128.64 = 63,769.44/x
  3. Step 3: Cross multiply
    117,484.44x = 162,128.64 × 63,769.44
  4. Step 4: Simplify right side
    117,484.44x = 10,338,852,580.76
  5. Step 5: Solve for x
    x = 10,338,852,580.76/117,484.44
  6. Step 6: Final answer
    x = 88,001.89

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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.