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Finding the Fourth Proportional to 101,141.40, 151,712.10 and 67,877.40

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Solution

The fourth proportional to 101,141.40, 151,712.10 and 67,877.40 is: 101,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,141.40 : 151,712.10 = 67,877.40 : x
  2. Step 2: Convert to fraction form
    101,141.40/151,712.10 = 67,877.40/x
  3. Step 3: Cross multiply
    101,141.40x = 151,712.10 × 67,877.40
  4. Step 4: Simplify right side
    101,141.40x = 10,297,822,896.54
  5. Step 5: Solve for x
    x = 10,297,822,896.54/101,141.40
  6. Step 6: Final answer
    x = 101,816.10

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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.