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Finding the Fourth Proportional to 176,378.76, 243,309.39 and 111,733.95

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Solution

The fourth proportional to 176,378.76, 243,309.39 and 111,733.95 is: 154,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,378.76 : 243,309.39 = 111,733.95 : x
  2. Step 2: Convert to fraction form
    176,378.76/243,309.39 = 111,733.95/x
  3. Step 3: Cross multiply
    176,378.76x = 243,309.39 × 111,733.95
  4. Step 4: Simplify right side
    176,378.76x = 27,185,919,216.79
  5. Step 5: Solve for x
    x = 27,185,919,216.79/176,378.76
  6. Step 6: Final answer
    x = 154,133.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.