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Finding the Fourth Proportional to 75,270.44, 112,905.71 and 19,114.76

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Solution

The fourth proportional to 75,270.44, 112,905.71 and 19,114.76 is: 28,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,270.44 : 112,905.71 = 19,114.76 : x
  2. Step 2: Convert to fraction form
    75,270.44/112,905.71 = 19,114.76/x
  3. Step 3: Cross multiply
    75,270.44x = 112,905.71 × 19,114.76
  4. Step 4: Simplify right side
    75,270.44x = 2,158,165,879.33
  5. Step 5: Solve for x
    x = 2,158,165,879.33/75,270.44
  6. Step 6: Final answer
    x = 28,672.16

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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.