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Finding the Fourth Proportional to 134,187.30, 188,138.70 and 134,187.30

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Solution

The fourth proportional to 134,187.30, 188,138.70 and 134,187.30 is: 188,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,187.30 : 188,138.70 = 134,187.30 : x
  2. Step 2: Convert to fraction form
    134,187.30/188,138.70 = 134,187.30/x
  3. Step 3: Cross multiply
    134,187.30x = 188,138.70 × 134,187.30
  4. Step 4: Simplify right side
    134,187.30x = 25,245,824,178.51
  5. Step 5: Solve for x
    x = 25,245,824,178.51/134,187.30
  6. Step 6: Final answer
    x = 188,138.70

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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.