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Finding the Fourth Proportional to 108,717.80, 163,076.70 and 52,584.80

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Solution

The fourth proportional to 108,717.80, 163,076.70 and 52,584.80 is: 78,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,717.80 : 163,076.70 = 52,584.80 : x
  2. Step 2: Convert to fraction form
    108,717.80/163,076.70 = 52,584.80/x
  3. Step 3: Cross multiply
    108,717.80x = 163,076.70 × 52,584.80
  4. Step 4: Simplify right side
    108,717.80x = 8,575,355,654.16
  5. Step 5: Solve for x
    x = 8,575,355,654.16/108,717.80
  6. Step 6: Final answer
    x = 78,877.20

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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.