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Finding the Fourth Proportional to 104,751.15, 144,556.32 and 57,004.49

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Solution

The fourth proportional to 104,751.15, 144,556.32 and 57,004.49 is: 78,666.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,751.15 : 144,556.32 = 57,004.49 : x
  2. Step 2: Convert to fraction form
    104,751.15/144,556.32 = 57,004.49/x
  3. Step 3: Cross multiply
    104,751.15x = 144,556.32 × 57,004.49
  4. Step 4: Simplify right side
    104,751.15x = 8,240,358,290.07
  5. Step 5: Solve for x
    x = 8,240,358,290.07/104,751.15
  6. Step 6: Final answer
    x = 78,666.04

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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.