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Finding the Fourth Proportional to 156,911.65, 235,367.48 and 50,295.40

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Solution

The fourth proportional to 156,911.65, 235,367.48 and 50,295.40 is: 75,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.65 : 235,367.48 = 50,295.40 : x
  2. Step 2: Convert to fraction form
    156,911.65/235,367.48 = 50,295.40/x
  3. Step 3: Cross multiply
    156,911.65x = 235,367.48 × 50,295.40
  4. Step 4: Simplify right side
    156,911.65x = 11,837,901,553.59
  5. Step 5: Solve for x
    x = 11,837,901,553.59/156,911.65
  6. Step 6: Final answer
    x = 75,443.10

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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.