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Finding the Fourth Proportional to 108,701.80, 152,286.20 and 108,701.80

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Solution

The fourth proportional to 108,701.80, 152,286.20 and 108,701.80 is: 152,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,701.80 : 152,286.20 = 108,701.80 : x
  2. Step 2: Convert to fraction form
    108,701.80/152,286.20 = 108,701.80/x
  3. Step 3: Cross multiply
    108,701.80x = 152,286.20 × 108,701.80
  4. Step 4: Simplify right side
    108,701.80x = 16,553,784,055.16
  5. Step 5: Solve for x
    x = 16,553,784,055.16/108,701.80
  6. Step 6: Final answer
    x = 152,286.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.