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Finding the Fourth Proportional to 113,495.80, 170,243.70 and 101,054.20

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Solution

The fourth proportional to 113,495.80, 170,243.70 and 101,054.20 is: 151,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,495.80 : 170,243.70 = 101,054.20 : x
  2. Step 2: Convert to fraction form
    113,495.80/170,243.70 = 101,054.20/x
  3. Step 3: Cross multiply
    113,495.80x = 170,243.70 × 101,054.20
  4. Step 4: Simplify right side
    113,495.80x = 17,203,840,908.54
  5. Step 5: Solve for x
    x = 17,203,840,908.54/113,495.80
  6. Step 6: Final answer
    x = 151,581.30

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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.