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Finding the Fourth Proportional to 117,555.68, 176,333.72 and 28,809.47

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Solution

The fourth proportional to 117,555.68, 176,333.72 and 28,809.47 is: 43,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,555.68 : 176,333.72 = 28,809.47 : x
  2. Step 2: Convert to fraction form
    117,555.68/176,333.72 = 28,809.47/x
  3. Step 3: Cross multiply
    117,555.68x = 176,333.72 × 28,809.47
  4. Step 4: Simplify right side
    117,555.68x = 5,080,079,990.61
  5. Step 5: Solve for x
    x = 5,080,079,990.61/117,555.68
  6. Step 6: Final answer
    x = 43,214.25

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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.