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Finding the Fourth Proportional to 143,925.48, 215,915.90 and 44,086.54

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Solution

The fourth proportional to 143,925.48, 215,915.90 and 44,086.54 is: 66,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,925.48 : 215,915.90 = 44,086.54 : x
  2. Step 2: Convert to fraction form
    143,925.48/215,915.90 = 44,086.54/x
  3. Step 3: Cross multiply
    143,925.48x = 215,915.90 × 44,086.54
  4. Step 4: Simplify right side
    143,925.48x = 9,518,985,282.22
  5. Step 5: Solve for x
    x = 9,518,985,282.22/143,925.48
  6. Step 6: Final answer
    x = 66,138.29

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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.