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Finding the Fourth Proportional to 268,335.38, 370,311.74 and 157,934.01

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Solution

The fourth proportional to 268,335.38, 370,311.74 and 157,934.01 is: 217,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,335.38 : 370,311.74 = 157,934.01 : x
  2. Step 2: Convert to fraction form
    268,335.38/370,311.74 = 157,934.01/x
  3. Step 3: Cross multiply
    268,335.38x = 370,311.74 × 157,934.01
  4. Step 4: Simplify right side
    268,335.38x = 58,484,818,048.28
  5. Step 5: Solve for x
    x = 58,484,818,048.28/268,335.38
  6. Step 6: Final answer
    x = 217,954.18

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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.