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Finding the Fourth Proportional to 220,438.59, 330,395.37 and 153,516.39

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Solution

The fourth proportional to 220,438.59, 330,395.37 and 153,516.39 is: 230,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,438.59 : 330,395.37 = 153,516.39 : x
  2. Step 2: Convert to fraction form
    220,438.59/330,395.37 = 153,516.39/x
  3. Step 3: Cross multiply
    220,438.59x = 330,395.37 × 153,516.39
  4. Step 4: Simplify right side
    220,438.59x = 50,721,104,475.11
  5. Step 5: Solve for x
    x = 50,721,104,475.11/220,438.59
  6. Step 6: Final answer
    x = 230,091.77

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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.