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Finding the Fourth Proportional to 117,741.70, 176,612.55 and 104,911.30

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Solution

The fourth proportional to 117,741.70, 176,612.55 and 104,911.30 is: 157,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,741.70 : 176,612.55 = 104,911.30 : x
  2. Step 2: Convert to fraction form
    117,741.70/176,612.55 = 104,911.30/x
  3. Step 3: Cross multiply
    117,741.70x = 176,612.55 × 104,911.30
  4. Step 4: Simplify right side
    117,741.70x = 18,528,652,216.82
  5. Step 5: Solve for x
    x = 18,528,652,216.82/117,741.70
  6. Step 6: Final answer
    x = 157,366.95

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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.