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Finding the Fourth Proportional to 57,597.78, 79,495.11 and 45,751.53

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Solution

The fourth proportional to 57,597.78, 79,495.11 and 45,751.53 is: 63,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,597.78 : 79,495.11 = 45,751.53 : x
  2. Step 2: Convert to fraction form
    57,597.78/79,495.11 = 45,751.53/x
  3. Step 3: Cross multiply
    57,597.78x = 79,495.11 × 45,751.53
  4. Step 4: Simplify right side
    57,597.78x = 3,637,022,910.02
  5. Step 5: Solve for x
    x = 3,637,022,910.02/57,597.78
  6. Step 6: Final answer
    x = 63,145.19

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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.