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Finding the Fourth Proportional to 78,941.43, 118,205.60 and 63,073.53

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Solution

The fourth proportional to 78,941.43, 118,205.60 and 63,073.53 is: 94,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941.43 : 118,205.60 = 63,073.53 : x
  2. Step 2: Convert to fraction form
    78,941.43/118,205.60 = 63,073.53/x
  3. Step 3: Cross multiply
    78,941.43x = 118,205.60 × 63,073.53
  4. Step 4: Simplify right side
    78,941.43x = 7,455,644,142.40
  5. Step 5: Solve for x
    x = 7,455,644,142.40/78,941.43
  6. Step 6: Final answer
    x = 94,445.26

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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.