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Finding the Fourth Proportional to 154,615.40, 231,812.40 and 59,764.40

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Solution

The fourth proportional to 154,615.40, 231,812.40 and 59,764.40 is: 89,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,615.40 : 231,812.40 = 59,764.40 : x
  2. Step 2: Convert to fraction form
    154,615.40/231,812.40 = 59,764.40/x
  3. Step 3: Cross multiply
    154,615.40x = 231,812.40 × 59,764.40
  4. Step 4: Simplify right side
    154,615.40x = 13,854,128,998.56
  5. Step 5: Solve for x
    x = 13,854,128,998.56/154,615.40
  6. Step 6: Final answer
    x = 89,603.81

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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.