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Finding the Fourth Proportional to 143,189.62, 214,702.12 and 59,007.90

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Solution

The fourth proportional to 143,189.62, 214,702.12 and 59,007.90 is: 88,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.62 : 214,702.12 = 59,007.90 : x
  2. Step 2: Convert to fraction form
    143,189.62/214,702.12 = 59,007.90/x
  3. Step 3: Cross multiply
    143,189.62x = 214,702.12 × 59,007.90
  4. Step 4: Simplify right side
    143,189.62x = 12,669,121,226.75
  5. Step 5: Solve for x
    x = 12,669,121,226.75/143,189.62
  6. Step 6: Final answer
    x = 88,477.93

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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.