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Finding the Fourth Proportional to 268,705.46, 370,659.51 and 167,928.50

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Solution

The fourth proportional to 268,705.46, 370,659.51 and 167,928.50 is: 231,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,705.46 : 370,659.51 = 167,928.50 : x
  2. Step 2: Convert to fraction form
    268,705.46/370,659.51 = 167,928.50/x
  3. Step 3: Cross multiply
    268,705.46x = 370,659.51 × 167,928.50
  4. Step 4: Simplify right side
    268,705.46x = 62,244,293,671.74
  5. Step 5: Solve for x
    x = 62,244,293,671.74/268,705.46
  6. Step 6: Final answer
    x = 231,645.07

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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.