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Finding the Fourth Proportional to 225,611.84, 311,337.60 and 123,636.08

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Solution

The fourth proportional to 225,611.84, 311,337.60 and 123,636.08 is: 170,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,611.84 : 311,337.60 = 123,636.08 : x
  2. Step 2: Convert to fraction form
    225,611.84/311,337.60 = 123,636.08/x
  3. Step 3: Cross multiply
    225,611.84x = 311,337.60 × 123,636.08
  4. Step 4: Simplify right side
    225,611.84x = 38,492,560,420.61
  5. Step 5: Solve for x
    x = 38,492,560,420.61/225,611.84
  6. Step 6: Final answer
    x = 170,614.10

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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.