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Finding the Fourth Proportional to 348,857.60, 523,286.40 and 124,471.40

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Solution

The fourth proportional to 348,857.60, 523,286.40 and 124,471.40 is: 186,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,857.60 : 523,286.40 = 124,471.40 : x
  2. Step 2: Convert to fraction form
    348,857.60/523,286.40 = 124,471.40/x
  3. Step 3: Cross multiply
    348,857.60x = 523,286.40 × 124,471.40
  4. Step 4: Simplify right side
    348,857.60x = 65,134,190,808.96
  5. Step 5: Solve for x
    x = 65,134,190,808.96/348,857.60
  6. Step 6: Final answer
    x = 186,707.10

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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.