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Finding the Fourth Proportional to 76,556.79, 114,703.97 and 60,810.39

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Solution

The fourth proportional to 76,556.79, 114,703.97 and 60,810.39 is: 91,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,556.79 : 114,703.97 = 60,810.39 : x
  2. Step 2: Convert to fraction form
    76,556.79/114,703.97 = 60,810.39/x
  3. Step 3: Cross multiply
    76,556.79x = 114,703.97 × 60,810.39
  4. Step 4: Simplify right side
    76,556.79x = 6,975,192,846.20
  5. Step 5: Solve for x
    x = 6,975,192,846.20/76,556.79
  6. Step 6: Final answer
    x = 91,111.35

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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.