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Finding the Fourth Proportional to 270,397.26, 373,035.47 and 155,648.45

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Solution

The fourth proportional to 270,397.26, 373,035.47 and 155,648.45 is: 214,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,397.26 : 373,035.47 = 155,648.45 : x
  2. Step 2: Convert to fraction form
    270,397.26/373,035.47 = 155,648.45/x
  3. Step 3: Cross multiply
    270,397.26x = 373,035.47 × 155,648.45
  4. Step 4: Simplify right side
    270,397.26x = 58,062,391,455.98
  5. Step 5: Solve for x
    x = 58,062,391,455.98/270,397.26
  6. Step 6: Final answer
    x = 214,729.95

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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.