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Finding the Fourth Proportional to 436,781.67, 655,330.16 and 152,514.11

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Solution

The fourth proportional to 436,781.67, 655,330.16 and 152,514.11 is: 228,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,781.67 : 655,330.16 = 152,514.11 : x
  2. Step 2: Convert to fraction form
    436,781.67/655,330.16 = 152,514.11/x
  3. Step 3: Cross multiply
    436,781.67x = 655,330.16 × 152,514.11
  4. Step 4: Simplify right side
    436,781.67x = 99,947,096,984.31
  5. Step 5: Solve for x
    x = 99,947,096,984.31/436,781.67
  6. Step 6: Final answer
    x = 228,826.22

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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.