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Finding the Fourth Proportional to 57,124.51, 78,773.51 and 47,418.35

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Solution

The fourth proportional to 57,124.51, 78,773.51 and 47,418.35 is: 65,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,124.51 : 78,773.51 = 47,418.35 : x
  2. Step 2: Convert to fraction form
    57,124.51/78,773.51 = 47,418.35/x
  3. Step 3: Cross multiply
    57,124.51x = 78,773.51 × 47,418.35
  4. Step 4: Simplify right side
    57,124.51x = 3,735,309,592.59
  5. Step 5: Solve for x
    x = 3,735,309,592.59/57,124.51
  6. Step 6: Final answer
    x = 65,388.92

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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.