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Finding the Fourth Proportional to 389,792.03, 584,726.25 and 162,040.55

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Solution

The fourth proportional to 389,792.03, 584,726.25 and 162,040.55 is: 243,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,792.03 : 584,726.25 = 162,040.55 : x
  2. Step 2: Convert to fraction form
    389,792.03/584,726.25 = 162,040.55/x
  3. Step 3: Cross multiply
    389,792.03x = 584,726.25 × 162,040.55
  4. Step 4: Simplify right side
    389,792.03x = 94,749,363,149.44
  5. Step 5: Solve for x
    x = 94,749,363,149.44/389,792.03
  6. Step 6: Final answer
    x = 243,076.71

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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.