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Finding the Fourth Proportional to 108,797.78, 163,084.40 and 45,654.58

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Solution

The fourth proportional to 108,797.78, 163,084.40 and 45,654.58 is: 68,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,797.78 : 163,084.40 = 45,654.58 : x
  2. Step 2: Convert to fraction form
    108,797.78/163,084.40 = 45,654.58/x
  3. Step 3: Cross multiply
    108,797.78x = 163,084.40 × 45,654.58
  4. Step 4: Simplify right side
    108,797.78x = 7,445,549,786.55
  5. Step 5: Solve for x
    x = 7,445,549,786.55/108,797.78
  6. Step 6: Final answer
    x = 68,434.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.