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Finding the Fourth Proportional to 217,145.33, 299,636.36 and 126,482.33

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Solution

The fourth proportional to 217,145.33, 299,636.36 and 126,482.33 is: 174,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,145.33 : 299,636.36 = 126,482.33 : x
  2. Step 2: Convert to fraction form
    217,145.33/299,636.36 = 126,482.33/x
  3. Step 3: Cross multiply
    217,145.33x = 299,636.36 × 126,482.33
  4. Step 4: Simplify right side
    217,145.33x = 37,898,702,834.93
  5. Step 5: Solve for x
    x = 37,898,702,834.93/217,145.33
  6. Step 6: Final answer
    x = 174,531.52

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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.