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Finding the Fourth Proportional to 56,773.74, 78,341.79 and 32,907.90

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Solution

The fourth proportional to 56,773.74, 78,341.79 and 32,907.90 is: 45,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,773.74 : 78,341.79 = 32,907.90 : x
  2. Step 2: Convert to fraction form
    56,773.74/78,341.79 = 32,907.90/x
  3. Step 3: Cross multiply
    56,773.74x = 78,341.79 × 32,907.90
  4. Step 4: Simplify right side
    56,773.74x = 2,578,063,791.14
  5. Step 5: Solve for x
    x = 2,578,063,791.14/56,773.74
  6. Step 6: Final answer
    x = 45,409.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.