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Finding the Fourth Proportional to 269,355.16, 371,712.72 and 148,500.88

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Solution

The fourth proportional to 269,355.16, 371,712.72 and 148,500.88 is: 204,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,355.16 : 371,712.72 = 148,500.88 : x
  2. Step 2: Convert to fraction form
    269,355.16/371,712.72 = 148,500.88/x
  3. Step 3: Cross multiply
    269,355.16x = 371,712.72 × 148,500.88
  4. Step 4: Simplify right side
    269,355.16x = 55,199,666,027.19
  5. Step 5: Solve for x
    x = 55,199,666,027.19/269,355.16
  6. Step 6: Final answer
    x = 204,932.65

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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.