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Finding the Fourth Proportional to 262,273.80, 393,314.70 and 84,827.40

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Solution

The fourth proportional to 262,273.80, 393,314.70 and 84,827.40 is: 127,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,273.80 : 393,314.70 = 84,827.40 : x
  2. Step 2: Convert to fraction form
    262,273.80/393,314.70 = 84,827.40/x
  3. Step 3: Cross multiply
    262,273.80x = 393,314.70 × 84,827.40
  4. Step 4: Simplify right side
    262,273.80x = 33,363,863,382.78
  5. Step 5: Solve for x
    x = 33,363,863,382.78/262,273.80
  6. Step 6: Final answer
    x = 127,210.05

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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.