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Finding the Fourth Proportional to 225,771.76, 311,332.45 and 157,763.95

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Solution

The fourth proportional to 225,771.76, 311,332.45 and 157,763.95 is: 217,551.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,771.76 : 311,332.45 = 157,763.95 : x
  2. Step 2: Convert to fraction form
    225,771.76/311,332.45 = 157,763.95/x
  3. Step 3: Cross multiply
    225,771.76x = 311,332.45 × 157,763.95
  4. Step 4: Simplify right side
    225,771.76x = 49,117,037,075.18
  5. Step 5: Solve for x
    x = 49,117,037,075.18/225,771.76
  6. Step 6: Final answer
    x = 217,551.73

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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.