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Finding the Fourth Proportional to 108,001.70, 151,357.90 and 108,001.70

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Solution

The fourth proportional to 108,001.70, 151,357.90 and 108,001.70 is: 151,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,001.70 : 151,357.90 = 108,001.70 : x
  2. Step 2: Convert to fraction form
    108,001.70/151,357.90 = 108,001.70/x
  3. Step 3: Cross multiply
    108,001.70x = 151,357.90 × 108,001.70
  4. Step 4: Simplify right side
    108,001.70x = 16,346,910,508.43
  5. Step 5: Solve for x
    x = 16,346,910,508.43/108,001.70
  6. Step 6: Final answer
    x = 151,357.90

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1.5x scale

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.