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Finding the Fourth Proportional to 268,776.54, 370,926.92 and 154,074.26

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Solution

The fourth proportional to 268,776.54, 370,926.92 and 154,074.26 is: 212,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,776.54 : 370,926.92 = 154,074.26 : x
  2. Step 2: Convert to fraction form
    268,776.54/370,926.92 = 154,074.26/x
  3. Step 3: Cross multiply
    268,776.54x = 370,926.92 × 154,074.26
  4. Step 4: Simplify right side
    268,776.54x = 57,150,290,713.08
  5. Step 5: Solve for x
    x = 57,150,290,713.08/268,776.54
  6. Step 6: Final answer
    x = 212,631.25

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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.