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Finding the Fourth Proportional to 118,753.76, 163,880.40 and 64,306.52

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Solution

The fourth proportional to 118,753.76, 163,880.40 and 64,306.52 is: 88,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,753.76 : 163,880.40 = 64,306.52 : x
  2. Step 2: Convert to fraction form
    118,753.76/163,880.40 = 64,306.52/x
  3. Step 3: Cross multiply
    118,753.76x = 163,880.40 × 64,306.52
  4. Step 4: Simplify right side
    118,753.76x = 10,538,578,220.21
  5. Step 5: Solve for x
    x = 10,538,578,220.21/118,753.76
  6. Step 6: Final answer
    x = 88,743.11

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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.