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Finding the Fourth Proportional to 56,766.70, 78,338.06 and 32,907.22

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Solution

The fourth proportional to 56,766.70, 78,338.06 and 32,907.22 is: 45,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,766.70 : 78,338.06 = 32,907.22 : x
  2. Step 2: Convert to fraction form
    56,766.70/78,338.06 = 32,907.22/x
  3. Step 3: Cross multiply
    56,766.70x = 78,338.06 × 32,907.22
  4. Step 4: Simplify right side
    56,766.70x = 2,577,887,774.79
  5. Step 5: Solve for x
    x = 2,577,887,774.79/56,766.70
  6. Step 6: Final answer
    x = 45,411.97

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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.