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Finding the Fourth Proportional to 94,357.89, 130,213.89 and 51,916.42

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Solution

The fourth proportional to 94,357.89, 130,213.89 and 51,916.42 is: 71,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,357.89 : 130,213.89 = 51,916.42 : x
  2. Step 2: Convert to fraction form
    94,357.89/130,213.89 = 51,916.42/x
  3. Step 3: Cross multiply
    94,357.89x = 130,213.89 × 51,916.42
  4. Step 4: Simplify right side
    94,357.89x = 6,760,239,003.07
  5. Step 5: Solve for x
    x = 6,760,239,003.07/94,357.89
  6. Step 6: Final answer
    x = 71,644.66

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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.