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Finding the Fourth Proportional to 106,507.62, 159,488.10 and 103,354.20

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Solution

The fourth proportional to 106,507.62, 159,488.10 and 103,354.20 is: 154,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,507.62 : 159,488.10 = 103,354.20 : x
  2. Step 2: Convert to fraction form
    106,507.62/159,488.10 = 103,354.20/x
  3. Step 3: Cross multiply
    106,507.62x = 159,488.10 × 103,354.20
  4. Step 4: Simplify right side
    106,507.62x = 16,483,764,985.02
  5. Step 5: Solve for x
    x = 16,483,764,985.02/106,507.62
  6. Step 6: Final answer
    x = 154,766.06

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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.