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Finding the Fourth Proportional to 292,381.41, 403,486.23 and 158,245.41

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Solution

The fourth proportional to 292,381.41, 403,486.23 and 158,245.41 is: 218,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,381.41 : 403,486.23 = 158,245.41 : x
  2. Step 2: Convert to fraction form
    292,381.41/403,486.23 = 158,245.41/x
  3. Step 3: Cross multiply
    292,381.41x = 403,486.23 × 158,245.41
  4. Step 4: Simplify right side
    292,381.41x = 63,849,843,895.70
  5. Step 5: Solve for x
    x = 63,849,843,895.70/292,381.41
  6. Step 6: Final answer
    x = 218,378.60

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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.