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Finding the Fourth Proportional to 147,560.35, 220,882.36 and 79,924.40

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Solution

The fourth proportional to 147,560.35, 220,882.36 and 79,924.40 is: 119,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,560.35 : 220,882.36 = 79,924.40 : x
  2. Step 2: Convert to fraction form
    147,560.35/220,882.36 = 79,924.40/x
  3. Step 3: Cross multiply
    147,560.35x = 220,882.36 × 79,924.40
  4. Step 4: Simplify right side
    147,560.35x = 17,653,891,009.99
  5. Step 5: Solve for x
    x = 17,653,891,009.99/147,560.35
  6. Step 6: Final answer
    x = 119,638.45

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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.