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Finding the Fourth Proportional to 281,606.50, 422,410.29 and 68,373.51

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Solution

The fourth proportional to 281,606.50, 422,410.29 and 68,373.51 is: 102,560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,606.50 : 422,410.29 = 68,373.51 : x
  2. Step 2: Convert to fraction form
    281,606.50/422,410.29 = 68,373.51/x
  3. Step 3: Cross multiply
    281,606.50x = 422,410.29 × 68,373.51
  4. Step 4: Simplify right side
    281,606.50x = 28,881,674,187.42
  5. Step 5: Solve for x
    x = 28,881,674,187.42/281,606.50
  6. Step 6: Final answer
    x = 102,560.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.