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Finding the Fourth Proportional to 118,598.20, 163,664.20 and 64,882.58

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Solution

The fourth proportional to 118,598.20, 163,664.20 and 64,882.58 is: 89,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,598.20 : 163,664.20 = 64,882.58 : x
  2. Step 2: Convert to fraction form
    118,598.20/163,664.20 = 64,882.58/x
  3. Step 3: Cross multiply
    118,598.20x = 163,664.20 × 64,882.58
  4. Step 4: Simplify right side
    118,598.20x = 10,618,955,549.64
  5. Step 5: Solve for x
    x = 10,618,955,549.64/118,598.20
  6. Step 6: Final answer
    x = 89,537.24

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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.