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Finding the Fourth Proportional to 348,485.87, 481,069.86 and 267,885.20

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Solution

The fourth proportional to 348,485.87, 481,069.86 and 267,885.20 is: 369,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,485.87 : 481,069.86 = 267,885.20 : x
  2. Step 2: Convert to fraction form
    348,485.87/481,069.86 = 267,885.20/x
  3. Step 3: Cross multiply
    348,485.87x = 481,069.86 × 267,885.20
  4. Step 4: Simplify right side
    348,485.87x = 128,871,495,660.07
  5. Step 5: Solve for x
    x = 128,871,495,660.07/348,485.87
  6. Step 6: Final answer
    x = 369,804.08

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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.