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Finding the Fourth Proportional to 53,915.93, 74,412.78 and 41,144.93

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Solution

The fourth proportional to 53,915.93, 74,412.78 and 41,144.93 is: 56,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,915.93 : 74,412.78 = 41,144.93 : x
  2. Step 2: Convert to fraction form
    53,915.93/74,412.78 = 41,144.93/x
  3. Step 3: Cross multiply
    53,915.93x = 74,412.78 × 41,144.93
  4. Step 4: Simplify right side
    53,915.93x = 3,061,708,624.21
  5. Step 5: Solve for x
    x = 3,061,708,624.21/53,915.93
  6. Step 6: Final answer
    x = 56,786.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.