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Finding the Fourth Proportional to 236,486.40, 354,441.60 and 103,084.80

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Solution

The fourth proportional to 236,486.40, 354,441.60 and 103,084.80 is: 154,501.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,486.40 : 354,441.60 = 103,084.80 : x
  2. Step 2: Convert to fraction form
    236,486.40/354,441.60 = 103,084.80/x
  3. Step 3: Cross multiply
    236,486.40x = 354,441.60 × 103,084.80
  4. Step 4: Simplify right side
    236,486.40x = 36,537,541,447.68
  5. Step 5: Solve for x
    x = 36,537,541,447.68/236,486.40
  6. Step 6: Final answer
    x = 154,501.66

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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.