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Finding the Fourth Proportional to 73,569.40, 110,354.10 and 18,165.40

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Solution

The fourth proportional to 73,569.40, 110,354.10 and 18,165.40 is: 27,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,569.40 : 110,354.10 = 18,165.40 : x
  2. Step 2: Convert to fraction form
    73,569.40/110,354.10 = 18,165.40/x
  3. Step 3: Cross multiply
    73,569.40x = 110,354.10 × 18,165.40
  4. Step 4: Simplify right side
    73,569.40x = 2,004,626,368.14
  5. Step 5: Solve for x
    x = 2,004,626,368.14/73,569.40
  6. Step 6: Final answer
    x = 27,248.10

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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.