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Finding the Fourth Proportional to 113,190.30, 169,785.45 and 73,824.30

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Solution

The fourth proportional to 113,190.30, 169,785.45 and 73,824.30 is: 110,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,190.30 : 169,785.45 = 73,824.30 : x
  2. Step 2: Convert to fraction form
    113,190.30/169,785.45 = 73,824.30/x
  3. Step 3: Cross multiply
    113,190.30x = 169,785.45 × 73,824.30
  4. Step 4: Simplify right side
    113,190.30x = 12,534,291,996.44
  5. Step 5: Solve for x
    x = 12,534,291,996.44/113,190.30
  6. Step 6: Final answer
    x = 110,736.45

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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.