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Finding the Fourth Proportional to 269,210.55, 371,509.79 and 148,351.80

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Solution

The fourth proportional to 269,210.55, 371,509.79 and 148,351.80 is: 204,725.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,210.55 : 371,509.79 = 148,351.80 : x
  2. Step 2: Convert to fraction form
    269,210.55/371,509.79 = 148,351.80/x
  3. Step 3: Cross multiply
    269,210.55x = 371,509.79 × 148,351.80
  4. Step 4: Simplify right side
    269,210.55x = 55,114,146,064.12
  5. Step 5: Solve for x
    x = 55,114,146,064.12/269,210.55
  6. Step 6: Final answer
    x = 204,725.06

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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.