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Finding the Fourth Proportional to 199,658.61, 275,526.78 and 109,014.29

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Solution

The fourth proportional to 199,658.61, 275,526.78 and 109,014.29 is: 150,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,658.61 : 275,526.78 = 109,014.29 : x
  2. Step 2: Convert to fraction form
    199,658.61/275,526.78 = 109,014.29/x
  3. Step 3: Cross multiply
    199,658.61x = 275,526.78 × 109,014.29
  4. Step 4: Simplify right side
    199,658.61x = 30,036,354,920.05
  5. Step 5: Solve for x
    x = 30,036,354,920.05/199,658.61
  6. Step 6: Final answer
    x = 150,438.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.