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Finding the Fourth Proportional to 143,967.08, 215,858.35 and 59,785.35

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Solution

The fourth proportional to 143,967.08, 215,858.35 and 59,785.35 is: 89,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,967.08 : 215,858.35 = 59,785.35 : x
  2. Step 2: Convert to fraction form
    143,967.08/215,858.35 = 59,785.35/x
  3. Step 3: Cross multiply
    143,967.08x = 215,858.35 × 59,785.35
  4. Step 4: Simplify right side
    143,967.08x = 12,905,167,079.90
  5. Step 5: Solve for x
    x = 12,905,167,079.90/143,967.08
  6. Step 6: Final answer
    x = 89,639.71

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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.