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Finding the Fourth Proportional to 116,840.10, 161,239.02 and 63,124.92

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Solution

The fourth proportional to 116,840.10, 161,239.02 and 63,124.92 is: 87,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,840.10 : 161,239.02 = 63,124.92 : x
  2. Step 2: Convert to fraction form
    116,840.10/161,239.02 = 63,124.92/x
  3. Step 3: Cross multiply
    116,840.10x = 161,239.02 × 63,124.92
  4. Step 4: Simplify right side
    116,840.10x = 10,178,200,238.38
  5. Step 5: Solve for x
    x = 10,178,200,238.38/116,840.10
  6. Step 6: Final answer
    x = 87,112.22

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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.