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Finding the Fourth Proportional to 57,595.78, 79,492.35 and 45,749.53

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Solution

The fourth proportional to 57,595.78, 79,492.35 and 45,749.53 is: 63,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,595.78 : 79,492.35 = 45,749.53 : x
  2. Step 2: Convert to fraction form
    57,595.78/79,492.35 = 45,749.53/x
  3. Step 3: Cross multiply
    57,595.78x = 79,492.35 × 45,749.53
  4. Step 4: Simplify right side
    57,595.78x = 3,636,737,651.10
  5. Step 5: Solve for x
    x = 3,636,737,651.10/57,595.78
  6. Step 6: Final answer
    x = 63,142.43

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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.