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Finding the Fourth Proportional to 225,334.17, 311,061.65 and 148,900.95

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Solution

The fourth proportional to 225,334.17, 311,061.65 and 148,900.95 is: 205,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,334.17 : 311,061.65 = 148,900.95 : x
  2. Step 2: Convert to fraction form
    225,334.17/311,061.65 = 148,900.95/x
  3. Step 3: Cross multiply
    225,334.17x = 311,061.65 × 148,900.95
  4. Step 4: Simplify right side
    225,334.17x = 46,317,375,193.57
  5. Step 5: Solve for x
    x = 46,317,375,193.57/225,334.17
  6. Step 6: Final answer
    x = 205,549.72

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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.