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Finding the Fourth Proportional to 73,411.60, 110,117.40 and 18,007.60

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Solution

The fourth proportional to 73,411.60, 110,117.40 and 18,007.60 is: 27,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,411.60 : 110,117.40 = 18,007.60 : x
  2. Step 2: Convert to fraction form
    73,411.60/110,117.40 = 18,007.60/x
  3. Step 3: Cross multiply
    73,411.60x = 110,117.40 × 18,007.60
  4. Step 4: Simplify right side
    73,411.60x = 1,982,950,092.24
  5. Step 5: Solve for x
    x = 1,982,950,092.24/73,411.60
  6. Step 6: Final answer
    x = 27,011.40

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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.