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Finding the Fourth Proportional to 441,228.81, 661,624.60 and 156,876.75

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Solution

The fourth proportional to 441,228.81, 661,624.60 and 156,876.75 is: 235,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,228.81 : 661,624.60 = 156,876.75 : x
  2. Step 2: Convert to fraction form
    441,228.81/661,624.60 = 156,876.75/x
  3. Step 3: Cross multiply
    441,228.81x = 661,624.60 × 156,876.75
  4. Step 4: Simplify right side
    441,228.81x = 103,793,516,968.05
  5. Step 5: Solve for x
    x = 103,793,516,968.05/441,228.81
  6. Step 6: Final answer
    x = 235,237.40

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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.