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Finding the Fourth Proportional to 222,718.60, 333,624.30 and 138,219.40

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Solution

The fourth proportional to 222,718.60, 333,624.30 and 138,219.40 is: 207,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,718.60 : 333,624.30 = 138,219.40 : x
  2. Step 2: Convert to fraction form
    222,718.60/333,624.30 = 138,219.40/x
  3. Step 3: Cross multiply
    222,718.60x = 333,624.30 × 138,219.40
  4. Step 4: Simplify right side
    222,718.60x = 46,113,350,571.42
  5. Step 5: Solve for x
    x = 46,113,350,571.42/222,718.60
  6. Step 6: Final answer
    x = 207,047.60

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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.