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Finding the Fourth Proportional to 94,356.72, 130,212.72 and 51,915.96

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Solution

The fourth proportional to 94,356.72, 130,212.72 and 51,915.96 is: 71,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,356.72 : 130,212.72 = 51,915.96 : x
  2. Step 2: Convert to fraction form
    94,356.72/130,212.72 = 51,915.96/x
  3. Step 3: Cross multiply
    94,356.72x = 130,212.72 × 51,915.96
  4. Step 4: Simplify right side
    94,356.72x = 6,760,118,363.01
  5. Step 5: Solve for x
    x = 6,760,118,363.01/94,356.72
  6. Step 6: Final answer
    x = 71,644.27

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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.