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Finding the Fourth Proportional to 161,054.40, 241,581.60 and 113,815.20

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Solution

The fourth proportional to 161,054.40, 241,581.60 and 113,815.20 is: 170,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,054.40 : 241,581.60 = 113,815.20 : x
  2. Step 2: Convert to fraction form
    161,054.40/241,581.60 = 113,815.20/x
  3. Step 3: Cross multiply
    161,054.40x = 241,581.60 × 113,815.20
  4. Step 4: Simplify right side
    161,054.40x = 27,495,658,120.32
  5. Step 5: Solve for x
    x = 27,495,658,120.32/161,054.40
  6. Step 6: Final answer
    x = 170,722.80

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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.