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Finding the Fourth Proportional to 143,878.91, 215,818.36 and 44,038.71

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Solution

The fourth proportional to 143,878.91, 215,818.36 and 44,038.71 is: 66,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,878.91 : 215,818.36 = 44,038.71 : x
  2. Step 2: Convert to fraction form
    143,878.91/215,818.36 = 44,038.71/x
  3. Step 3: Cross multiply
    143,878.91x = 215,818.36 × 44,038.71
  4. Step 4: Simplify right side
    143,878.91x = 9,504,362,058.62
  5. Step 5: Solve for x
    x = 9,504,362,058.62/143,878.91
  6. Step 6: Final answer
    x = 66,058.07

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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.