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Finding the Fourth Proportional to 117,588.84, 176,380.71 and 28,842.78

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Solution

The fourth proportional to 117,588.84, 176,380.71 and 28,842.78 is: 43,263.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,588.84 : 176,380.71 = 28,842.78 : x
  2. Step 2: Convert to fraction form
    117,588.84/176,380.71 = 28,842.78/x
  3. Step 3: Cross multiply
    117,588.84x = 176,380.71 × 28,842.78
  4. Step 4: Simplify right side
    117,588.84x = 5,087,310,014.77
  5. Step 5: Solve for x
    x = 5,087,310,014.77/117,588.84
  6. Step 6: Final answer
    x = 43,263.54

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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.