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Finding the Fourth Proportional to 118,296.54, 163,250.07 and 64,582.62

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Solution

The fourth proportional to 118,296.54, 163,250.07 and 64,582.62 is: 89,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,296.54 : 163,250.07 = 64,582.62 : x
  2. Step 2: Convert to fraction form
    118,296.54/163,250.07 = 64,582.62/x
  3. Step 3: Cross multiply
    118,296.54x = 163,250.07 × 64,582.62
  4. Step 4: Simplify right side
    118,296.54x = 10,543,117,235.78
  5. Step 5: Solve for x
    x = 10,543,117,235.78/118,296.54
  6. Step 6: Final answer
    x = 89,124.48

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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.