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Finding the Fourth Proportional to 268,753.70, 370,895.42 and 154,051.43

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Solution

The fourth proportional to 268,753.70, 370,895.42 and 154,051.43 is: 212,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,753.70 : 370,895.42 = 154,051.43 : x
  2. Step 2: Convert to fraction form
    268,753.70/370,895.42 = 154,051.43/x
  3. Step 3: Cross multiply
    268,753.70x = 370,895.42 × 154,051.43
  4. Step 4: Simplify right side
    268,753.70x = 57,136,968,362.10
  5. Step 5: Solve for x
    x = 57,136,968,362.10/268,753.70
  6. Step 6: Final answer
    x = 212,599.74

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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.