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Finding the Fourth Proportional to 186,556.70, 257,448.50 and 101,673.77

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Solution

The fourth proportional to 186,556.70, 257,448.50 and 101,673.77 is: 140,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,556.70 : 257,448.50 = 101,673.77 : x
  2. Step 2: Convert to fraction form
    186,556.70/257,448.50 = 101,673.77/x
  3. Step 3: Cross multiply
    186,556.70x = 257,448.50 × 101,673.77
  4. Step 4: Simplify right side
    186,556.70x = 26,175,757,780.23
  5. Step 5: Solve for x
    x = 26,175,757,780.23/186,556.70
  6. Step 6: Final answer
    x = 140,309.93

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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.