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Finding the Fourth Proportional to 100,779.39, 151,203.11 and 44,611.76

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Solution

The fourth proportional to 100,779.39, 151,203.11 and 44,611.76 is: 66,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,779.39 : 151,203.11 = 44,611.76 : x
  2. Step 2: Convert to fraction form
    100,779.39/151,203.11 = 44,611.76/x
  3. Step 3: Cross multiply
    100,779.39x = 151,203.11 × 44,611.76
  4. Step 4: Simplify right side
    100,779.39x = 6,745,437,009.52
  5. Step 5: Solve for x
    x = 6,745,437,009.52/100,779.39
  6. Step 6: Final answer
    x = 66,932.70

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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.