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Finding the Fourth Proportional to 225,588.44, 311,312.05 and 134,948.22

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Solution

The fourth proportional to 225,588.44, 311,312.05 and 134,948.22 is: 186,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,588.44 : 311,312.05 = 134,948.22 : x
  2. Step 2: Convert to fraction form
    225,588.44/311,312.05 = 134,948.22/x
  3. Step 3: Cross multiply
    225,588.44x = 311,312.05 × 134,948.22
  4. Step 4: Simplify right side
    225,588.44x = 42,011,007,012.05
  5. Step 5: Solve for x
    x = 42,011,007,012.05/225,588.44
  6. Step 6: Final answer
    x = 186,228.55

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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.