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Finding the Fourth Proportional to 247,674.60, 341,784 and 140,254.80

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Solution

The fourth proportional to 247,674.60, 341,784 and 140,254.80 is: 193,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,674.60 : 341,784 = 140,254.80 : x
  2. Step 2: Convert to fraction form
    247,674.60/341,784 = 140,254.80/x
  3. Step 3: Cross multiply
    247,674.60x = 341,784 × 140,254.80
  4. Step 4: Simplify right side
    247,674.60x = 47,936,846,563.20
  5. Step 5: Solve for x
    x = 47,936,846,563.20/247,674.60
  6. Step 6: Final answer
    x = 193,547.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.