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Finding the Fourth Proportional to 56,625.80, 78,147.98 and 33,965.68

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Solution

The fourth proportional to 56,625.80, 78,147.98 and 33,965.68 is: 46,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.80 : 78,147.98 = 33,965.68 : x
  2. Step 2: Convert to fraction form
    56,625.80/78,147.98 = 33,965.68/x
  3. Step 3: Cross multiply
    56,625.80x = 78,147.98 × 33,965.68
  4. Step 4: Simplify right side
    56,625.80x = 2,654,349,281.33
  5. Step 5: Solve for x
    x = 2,654,349,281.33/56,625.80
  6. Step 6: Final answer
    x = 46,875.26

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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.