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Finding the Fourth Proportional to 250,782.30, 375,736.03 and 208,931.22

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Solution

The fourth proportional to 250,782.30, 375,736.03 and 208,931.22 is: 313,032.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,782.30 : 375,736.03 = 208,931.22 : x
  2. Step 2: Convert to fraction form
    250,782.30/375,736.03 = 208,931.22/x
  3. Step 3: Cross multiply
    250,782.30x = 375,736.03 × 208,931.22
  4. Step 4: Simplify right side
    250,782.30x = 78,502,987,145.86
  5. Step 5: Solve for x
    x = 78,502,987,145.86/250,782.30
  6. Step 6: Final answer
    x = 313,032.41

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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.