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Finding the Fourth Proportional to 68,730.60, 103,094.46 and 37,155.72

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Solution

The fourth proportional to 68,730.60, 103,094.46 and 37,155.72 is: 55,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730.60 : 103,094.46 = 37,155.72 : x
  2. Step 2: Convert to fraction form
    68,730.60/103,094.46 = 37,155.72/x
  3. Step 3: Cross multiply
    68,730.60x = 103,094.46 × 37,155.72
  4. Step 4: Simplify right side
    68,730.60x = 3,830,548,889.31
  5. Step 5: Solve for x
    x = 3,830,548,889.31/68,730.60
  6. Step 6: Final answer
    x = 55,732.80

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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.