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Finding the Fourth Proportional to 53,114.70, 79,672.05 and 48,276.30

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Solution

The fourth proportional to 53,114.70, 79,672.05 and 48,276.30 is: 72,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,114.70 : 79,672.05 = 48,276.30 : x
  2. Step 2: Convert to fraction form
    53,114.70/79,672.05 = 48,276.30/x
  3. Step 3: Cross multiply
    53,114.70x = 79,672.05 × 48,276.30
  4. Step 4: Simplify right side
    53,114.70x = 3,846,271,787.42
  5. Step 5: Solve for x
    x = 3,846,271,787.42/53,114.70
  6. Step 6: Final answer
    x = 72,414.45

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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.