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Finding the Fourth Proportional to 56,769.73, 77,774.88 and 54,641.49

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Solution

The fourth proportional to 56,769.73, 77,774.88 and 54,641.49 is: 74,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769.73 : 77,774.88 = 54,641.49 : x
  2. Step 2: Convert to fraction form
    56,769.73/77,774.88 = 54,641.49/x
  3. Step 3: Cross multiply
    56,769.73x = 77,774.88 × 54,641.49
  4. Step 4: Simplify right side
    56,769.73x = 4,249,735,241.02
  5. Step 5: Solve for x
    x = 4,249,735,241.02/56,769.73
  6. Step 6: Final answer
    x = 74,859.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.