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Finding the Fourth Proportional to 117,048.60, 176,301.92 and 108,836.40

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Solution

The fourth proportional to 117,048.60, 176,301.92 and 108,836.40 is: 163,932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,048.60 : 176,301.92 = 108,836.40 : x
  2. Step 2: Convert to fraction form
    117,048.60/176,301.92 = 108,836.40/x
  3. Step 3: Cross multiply
    117,048.60x = 176,301.92 × 108,836.40
  4. Step 4: Simplify right side
    117,048.60x = 19,188,066,285.89
  5. Step 5: Solve for x
    x = 19,188,066,285.89/117,048.60
  6. Step 6: Final answer
    x = 163,932.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.