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Finding the Fourth Proportional to 268,756.28, 370,886.45 and 154,032.44

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Solution

The fourth proportional to 268,756.28, 370,886.45 and 154,032.44 is: 212,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,756.28 : 370,886.45 = 154,032.44 : x
  2. Step 2: Convert to fraction form
    268,756.28/370,886.45 = 154,032.44/x
  3. Step 3: Cross multiply
    268,756.28x = 370,886.45 × 154,032.44
  4. Step 4: Simplify right side
    268,756.28x = 57,128,542,231.84
  5. Step 5: Solve for x
    x = 57,128,542,231.84/268,756.28
  6. Step 6: Final answer
    x = 212,566.35

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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.