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Finding the Fourth Proportional to 92,273.60, 138,410.40 and 45,617.60

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Solution

The fourth proportional to 92,273.60, 138,410.40 and 45,617.60 is: 68,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,273.60 : 138,410.40 = 45,617.60 : x
  2. Step 2: Convert to fraction form
    92,273.60/138,410.40 = 45,617.60/x
  3. Step 3: Cross multiply
    92,273.60x = 138,410.40 × 45,617.60
  4. Step 4: Simplify right side
    92,273.60x = 6,313,950,263.04
  5. Step 5: Solve for x
    x = 6,313,950,263.04/92,273.60
  6. Step 6: Final answer
    x = 68,426.40

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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.