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Finding the Fourth Proportional to 225,492.12, 311,388.30 and 168,805.08

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Solution

The fourth proportional to 225,492.12, 311,388.30 and 168,805.08 is: 233,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,492.12 : 311,388.30 = 168,805.08 : x
  2. Step 2: Convert to fraction form
    225,492.12/311,388.30 = 168,805.08/x
  3. Step 3: Cross multiply
    225,492.12x = 311,388.30 × 168,805.08
  4. Step 4: Simplify right side
    225,492.12x = 52,563,926,892.56
  5. Step 5: Solve for x
    x = 52,563,926,892.56/225,492.12
  6. Step 6: Final answer
    x = 233,107.60

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1.5x scale

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.