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Finding the Fourth Proportional to 218,210.20, 327,315.30 and 176,738.20

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Solution

The fourth proportional to 218,210.20, 327,315.30 and 176,738.20 is: 265,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,210.20 : 327,315.30 = 176,738.20 : x
  2. Step 2: Convert to fraction form
    218,210.20/327,315.30 = 176,738.20/x
  3. Step 3: Cross multiply
    218,210.20x = 327,315.30 × 176,738.20
  4. Step 4: Simplify right side
    218,210.20x = 57,849,116,954.46
  5. Step 5: Solve for x
    x = 57,849,116,954.46/218,210.20
  6. Step 6: Final answer
    x = 265,107.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.