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Finding the Fourth Proportional to 269,436.53, 371,847.29 and 154,730.21

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Solution

The fourth proportional to 269,436.53, 371,847.29 and 154,730.21 is: 213,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,436.53 : 371,847.29 = 154,730.21 : x
  2. Step 2: Convert to fraction form
    269,436.53/371,847.29 = 154,730.21/x
  3. Step 3: Cross multiply
    269,436.53x = 371,847.29 × 154,730.21
  4. Step 4: Simplify right side
    269,436.53x = 57,536,006,636.74
  5. Step 5: Solve for x
    x = 57,536,006,636.74/269,436.53
  6. Step 6: Final answer
    x = 213,541.97

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1.5x scale

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.