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Finding the Fourth Proportional to 229,980.56, 317,376.17 and 126,626.77

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Solution

The fourth proportional to 229,980.56, 317,376.17 and 126,626.77 is: 174,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,980.56 : 317,376.17 = 126,626.77 : x
  2. Step 2: Convert to fraction form
    229,980.56/317,376.17 = 126,626.77/x
  3. Step 3: Cross multiply
    229,980.56x = 317,376.17 × 126,626.77
  4. Step 4: Simplify right side
    229,980.56x = 40,188,319,520.51
  5. Step 5: Solve for x
    x = 40,188,319,520.51/229,980.56
  6. Step 6: Final answer
    x = 174,746.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.