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Finding the Fourth Proportional to 144,325.80, 216,051.30 and 109,042.20

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Solution

The fourth proportional to 144,325.80, 216,051.30 and 109,042.20 is: 163,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,325.80 : 216,051.30 = 109,042.20 : x
  2. Step 2: Convert to fraction form
    144,325.80/216,051.30 = 109,042.20/x
  3. Step 3: Cross multiply
    144,325.80x = 216,051.30 × 109,042.20
  4. Step 4: Simplify right side
    144,325.80x = 23,558,709,064.86
  5. Step 5: Solve for x
    x = 23,558,709,064.86/144,325.80
  6. Step 6: Final answer
    x = 163,232.83

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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.