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Finding the Fourth Proportional to 118,040.61, 162,896.02 and 64,325.61

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Solution

The fourth proportional to 118,040.61, 162,896.02 and 64,325.61 is: 88,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,040.61 : 162,896.02 = 64,325.61 : x
  2. Step 2: Convert to fraction form
    118,040.61/162,896.02 = 64,325.61/x
  3. Step 3: Cross multiply
    118,040.61x = 162,896.02 × 64,325.61
  4. Step 4: Simplify right side
    118,040.61x = 10,478,385,853.07
  5. Step 5: Solve for x
    x = 10,478,385,853.07/118,040.61
  6. Step 6: Final answer
    x = 88,769.33

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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.