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Finding the Fourth Proportional to 292,635, 403,836.30 and 158,499

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Solution

The fourth proportional to 292,635, 403,836.30 and 158,499 is: 218,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,635 : 403,836.30 = 158,499 : x
  2. Step 2: Convert to fraction form
    292,635/403,836.30 = 158,499/x
  3. Step 3: Cross multiply
    292,635x = 403,836.30 × 158,499
  4. Step 4: Simplify right side
    292,635x = 64,007,649,713.70
  5. Step 5: Solve for x
    x = 64,007,649,713.70/292,635
  6. Step 6: Final answer
    x = 218,728.62

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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.