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Finding the Fourth Proportional to 217,150.68, 325,674.54 and 122,422.80

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Solution

The fourth proportional to 217,150.68, 325,674.54 and 122,422.80 is: 183,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,150.68 : 325,674.54 = 122,422.80 : x
  2. Step 2: Convert to fraction form
    217,150.68/325,674.54 = 122,422.80/x
  3. Step 3: Cross multiply
    217,150.68x = 325,674.54 × 122,422.80
  4. Step 4: Simplify right side
    217,150.68x = 39,869,989,075.51
  5. Step 5: Solve for x
    x = 39,869,989,075.51/217,150.68
  6. Step 6: Final answer
    x = 183,605.18

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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.