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Finding the Fourth Proportional to 143,069.88, 214,643.08 and 49,575.64

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Solution

The fourth proportional to 143,069.88, 214,643.08 and 49,575.64 is: 74,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,069.88 : 214,643.08 = 49,575.64 : x
  2. Step 2: Convert to fraction form
    143,069.88/214,643.08 = 49,575.64/x
  3. Step 3: Cross multiply
    143,069.88x = 214,643.08 × 49,575.64
  4. Step 4: Simplify right side
    143,069.88x = 10,641,068,062.57
  5. Step 5: Solve for x
    x = 10,641,068,062.57/143,069.88
  6. Step 6: Final answer
    x = 74,376.72

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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.