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Finding the Fourth Proportional to 68,873.60, 103,310.40 and 46,566.20

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Solution

The fourth proportional to 68,873.60, 103,310.40 and 46,566.20 is: 69,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,873.60 : 103,310.40 = 46,566.20 : x
  2. Step 2: Convert to fraction form
    68,873.60/103,310.40 = 46,566.20/x
  3. Step 3: Cross multiply
    68,873.60x = 103,310.40 × 46,566.20
  4. Step 4: Simplify right side
    68,873.60x = 4,810,772,748.48
  5. Step 5: Solve for x
    x = 4,810,772,748.48/68,873.60
  6. Step 6: Final answer
    x = 69,849.30

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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.