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Finding the Fourth Proportional to 100,672.60, 151,008.90 and 48,184.60

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Solution

The fourth proportional to 100,672.60, 151,008.90 and 48,184.60 is: 72,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,672.60 : 151,008.90 = 48,184.60 : x
  2. Step 2: Convert to fraction form
    100,672.60/151,008.90 = 48,184.60/x
  3. Step 3: Cross multiply
    100,672.60x = 151,008.90 × 48,184.60
  4. Step 4: Simplify right side
    100,672.60x = 7,276,303,442.94
  5. Step 5: Solve for x
    x = 7,276,303,442.94/100,672.60
  6. Step 6: Final answer
    x = 72,276.90

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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.