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Finding the Fourth Proportional to 56,580.84, 84,749.76 and 53,268.56

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Solution

The fourth proportional to 56,580.84, 84,749.76 and 53,268.56 is: 79,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,580.84 : 84,749.76 = 53,268.56 : x
  2. Step 2: Convert to fraction form
    56,580.84/84,749.76 = 53,268.56/x
  3. Step 3: Cross multiply
    56,580.84x = 84,749.76 × 53,268.56
  4. Step 4: Simplify right side
    56,580.84x = 4,514,497,675.55
  5. Step 5: Solve for x
    x = 4,514,497,675.55/56,580.84
  6. Step 6: Final answer
    x = 79,788.45

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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.