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Finding the Fourth Proportional to 281,666.70, 422,564.05 and 94,697.10

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Solution

The fourth proportional to 281,666.70, 422,564.05 and 94,697.10 is: 142,067.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,666.70 : 422,564.05 = 94,697.10 : x
  2. Step 2: Convert to fraction form
    281,666.70/422,564.05 = 94,697.10/x
  3. Step 3: Cross multiply
    281,666.70x = 422,564.05 × 94,697.10
  4. Step 4: Simplify right side
    281,666.70x = 40,015,590,099.26
  5. Step 5: Solve for x
    x = 40,015,590,099.26/281,666.70
  6. Step 6: Final answer
    x = 142,067.17

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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.