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Finding the Fourth Proportional to 208,271.53, 312,171.04 and 95,719.12

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Solution

The fourth proportional to 208,271.53, 312,171.04 and 95,719.12 is: 143,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,271.53 : 312,171.04 = 95,719.12 : x
  2. Step 2: Convert to fraction form
    208,271.53/312,171.04 = 95,719.12/x
  3. Step 3: Cross multiply
    208,271.53x = 312,171.04 × 95,719.12
  4. Step 4: Simplify right side
    208,271.53x = 29,880,737,238.28
  5. Step 5: Solve for x
    x = 29,880,737,238.28/208,271.53
  6. Step 6: Final answer
    x = 143,470.10

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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.