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Finding the Fourth Proportional to 236,938.80, 355,278.60 and 96,538.80

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Solution

The fourth proportional to 236,938.80, 355,278.60 and 96,538.80 is: 144,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,938.80 : 355,278.60 = 96,538.80 : x
  2. Step 2: Convert to fraction form
    236,938.80/355,278.60 = 96,538.80/x
  3. Step 3: Cross multiply
    236,938.80x = 355,278.60 × 96,538.80
  4. Step 4: Simplify right side
    236,938.80x = 34,298,169,709.68
  5. Step 5: Solve for x
    x = 34,298,169,709.68/236,938.80
  6. Step 6: Final answer
    x = 144,755.40

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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.