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Finding the Fourth Proportional to 117,143.80, 175,689.35 and 53,903.26

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Solution

The fourth proportional to 117,143.80, 175,689.35 and 53,903.26 is: 80,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,143.80 : 175,689.35 = 53,903.26 : x
  2. Step 2: Convert to fraction form
    117,143.80/175,689.35 = 53,903.26/x
  3. Step 3: Cross multiply
    117,143.80x = 175,689.35 × 53,903.26
  4. Step 4: Simplify right side
    117,143.80x = 9,470,228,712.28
  5. Step 5: Solve for x
    x = 9,470,228,712.28/117,143.80
  6. Step 6: Final answer
    x = 80,842.77

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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.