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Finding the Fourth Proportional to 292,267, 403,328.46 and 158,131

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Solution

The fourth proportional to 292,267, 403,328.46 and 158,131 is: 218,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,267 : 403,328.46 = 158,131 : x
  2. Step 2: Convert to fraction form
    292,267/403,328.46 = 158,131/x
  3. Step 3: Cross multiply
    292,267x = 403,328.46 × 158,131
  4. Step 4: Simplify right side
    292,267x = 63,778,732,708.26
  5. Step 5: Solve for x
    x = 63,778,732,708.26/292,267
  6. Step 6: Final answer
    x = 218,220.78

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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.