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Finding the Fourth Proportional to 113,146.62, 169,741.80 and 43,020.48

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Solution

The fourth proportional to 113,146.62, 169,741.80 and 43,020.48 is: 64,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,146.62 : 169,741.80 = 43,020.48 : x
  2. Step 2: Convert to fraction form
    113,146.62/169,741.80 = 43,020.48/x
  3. Step 3: Cross multiply
    113,146.62x = 169,741.80 × 43,020.48
  4. Step 4: Simplify right side
    113,146.62x = 7,302,373,712.06
  5. Step 5: Solve for x
    x = 7,302,373,712.06/113,146.62
  6. Step 6: Final answer
    x = 64,539.04

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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.