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Finding the Fourth Proportional to 73,100.80, 109,456.80 and 46,662.40

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Solution

The fourth proportional to 73,100.80, 109,456.80 and 46,662.40 is: 69,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,100.80 : 109,456.80 = 46,662.40 : x
  2. Step 2: Convert to fraction form
    73,100.80/109,456.80 = 46,662.40/x
  3. Step 3: Cross multiply
    73,100.80x = 109,456.80 × 46,662.40
  4. Step 4: Simplify right side
    73,100.80x = 5,107,516,984.32
  5. Step 5: Solve for x
    x = 5,107,516,984.32/73,100.80
  6. Step 6: Final answer
    x = 69,869.51

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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.