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Finding the Fourth Proportional to 154,271.67, 231,168.15 and 106,979.01

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Solution

The fourth proportional to 154,271.67, 231,168.15 and 106,979.01 is: 160,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,271.67 : 231,168.15 = 106,979.01 : x
  2. Step 2: Convert to fraction form
    154,271.67/231,168.15 = 106,979.01/x
  3. Step 3: Cross multiply
    154,271.67x = 231,168.15 × 106,979.01
  4. Step 4: Simplify right side
    154,271.67x = 24,730,139,830.53
  5. Step 5: Solve for x
    x = 24,730,139,830.53/154,271.67
  6. Step 6: Final answer
    x = 160,302.54

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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.