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Finding the Fourth Proportional to 230,764.40, 346,301.40 and 81,004.40

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Solution

The fourth proportional to 230,764.40, 346,301.40 and 81,004.40 is: 121,560.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,764.40 : 346,301.40 = 81,004.40 : x
  2. Step 2: Convert to fraction form
    230,764.40/346,301.40 = 81,004.40/x
  3. Step 3: Cross multiply
    230,764.40x = 346,301.40 × 81,004.40
  4. Step 4: Simplify right side
    230,764.40x = 28,051,937,126.16
  5. Step 5: Solve for x
    x = 28,051,937,126.16/230,764.40
  6. Step 6: Final answer
    x = 121,560.94

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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.