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Finding the Fourth Proportional to 68,433.60, 102,669.60 and 33,374.40

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Solution

The fourth proportional to 68,433.60, 102,669.60 and 33,374.40 is: 50,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,433.60 : 102,669.60 = 33,374.40 : x
  2. Step 2: Convert to fraction form
    68,433.60/102,669.60 = 33,374.40/x
  3. Step 3: Cross multiply
    68,433.60x = 102,669.60 × 33,374.40
  4. Step 4: Simplify right side
    68,433.60x = 3,426,536,298.24
  5. Step 5: Solve for x
    x = 3,426,536,298.24/68,433.60
  6. Step 6: Final answer
    x = 50,070.96

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1.5x scale

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.