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Finding the Fourth Proportional to 117,666.51, 176,498.22 and 28,920.81

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Solution

The fourth proportional to 117,666.51, 176,498.22 and 28,920.81 is: 43,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,666.51 : 176,498.22 = 28,920.81 : x
  2. Step 2: Convert to fraction form
    117,666.51/176,498.22 = 28,920.81/x
  3. Step 3: Cross multiply
    117,666.51x = 176,498.22 × 28,920.81
  4. Step 4: Simplify right side
    117,666.51x = 5,104,471,485.96
  5. Step 5: Solve for x
    x = 5,104,471,485.96/117,666.51
  6. Step 6: Final answer
    x = 43,380.84

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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.