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Finding the Fourth Proportional to 134,752.60, 201,910.20 and 84,743.20

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Solution

The fourth proportional to 134,752.60, 201,910.20 and 84,743.20 is: 126,977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,752.60 : 201,910.20 = 84,743.20 : x
  2. Step 2: Convert to fraction form
    134,752.60/201,910.20 = 84,743.20/x
  3. Step 3: Cross multiply
    134,752.60x = 201,910.20 × 84,743.20
  4. Step 4: Simplify right side
    134,752.60x = 17,110,516,460.64
  5. Step 5: Solve for x
    x = 17,110,516,460.64/134,752.60
  6. Step 6: Final answer
    x = 126,977.26

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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.