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Finding the Fourth Proportional to 156,641.73, 234,769.95 and 61,776.69

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Solution

The fourth proportional to 156,641.73, 234,769.95 and 61,776.69 is: 92,589.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.73 : 234,769.95 = 61,776.69 : x
  2. Step 2: Convert to fraction form
    156,641.73/234,769.95 = 61,776.69/x
  3. Step 3: Cross multiply
    156,641.73x = 234,769.95 × 61,776.69
  4. Step 4: Simplify right side
    156,641.73x = 14,503,310,422.47
  5. Step 5: Solve for x
    x = 14,503,310,422.47/156,641.73
  6. Step 6: Final answer
    x = 92,589.06

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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.