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Finding the Fourth Proportional to 106,404.60, 159,606.90 and 104,849.40

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Solution

The fourth proportional to 106,404.60, 159,606.90 and 104,849.40 is: 157,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,404.60 : 159,606.90 = 104,849.40 : x
  2. Step 2: Convert to fraction form
    106,404.60/159,606.90 = 104,849.40/x
  3. Step 3: Cross multiply
    106,404.60x = 159,606.90 × 104,849.40
  4. Step 4: Simplify right side
    106,404.60x = 16,734,687,700.86
  5. Step 5: Solve for x
    x = 16,734,687,700.86/106,404.60
  6. Step 6: Final answer
    x = 157,274.10

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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.