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Finding the Fourth Proportional to 268,648.98, 370,384.20 and 194,995.20

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Solution

The fourth proportional to 268,648.98, 370,384.20 and 194,995.20 is: 268,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,648.98 : 370,384.20 = 194,995.20 : x
  2. Step 2: Convert to fraction form
    268,648.98/370,384.20 = 194,995.20/x
  3. Step 3: Cross multiply
    268,648.98x = 370,384.20 × 194,995.20
  4. Step 4: Simplify right side
    268,648.98x = 72,223,141,155.84
  5. Step 5: Solve for x
    x = 72,223,141,155.84/268,648.98
  6. Step 6: Final answer
    x = 268,838.32

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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.