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Finding the Fourth Proportional to 101,915.36, 152,876.96 and 48,579.84

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Solution

The fourth proportional to 101,915.36, 152,876.96 and 48,579.84 is: 72,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.36 : 152,876.96 = 48,579.84 : x
  2. Step 2: Convert to fraction form
    101,915.36/152,876.96 = 48,579.84/x
  3. Step 3: Cross multiply
    101,915.36x = 152,876.96 × 48,579.84
  4. Step 4: Simplify right side
    101,915.36x = 7,426,738,256.49
  5. Step 5: Solve for x
    x = 7,426,738,256.49/101,915.36
  6. Step 6: Final answer
    x = 72,871.63

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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.