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Finding the Fourth Proportional to 118,916.80, 178,393.66 and 40,024.88

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Solution

The fourth proportional to 118,916.80, 178,393.66 and 40,024.88 is: 60,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,916.80 : 178,393.66 = 40,024.88 : x
  2. Step 2: Convert to fraction form
    118,916.80/178,393.66 = 40,024.88/x
  3. Step 3: Cross multiply
    118,916.80x = 178,393.66 × 40,024.88
  4. Step 4: Simplify right side
    118,916.80x = 7,140,184,834.26
  5. Step 5: Solve for x
    x = 7,140,184,834.26/118,916.80
  6. Step 6: Final answer
    x = 60,043.53

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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.