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Finding the Fourth Proportional to 192,070.47, 265,055.70 and 111,505.47

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Solution

The fourth proportional to 192,070.47, 265,055.70 and 111,505.47 is: 153,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,070.47 : 265,055.70 = 111,505.47 : x
  2. Step 2: Convert to fraction form
    192,070.47/265,055.70 = 111,505.47/x
  3. Step 3: Cross multiply
    192,070.47x = 265,055.70 × 111,505.47
  4. Step 4: Simplify right side
    192,070.47x = 29,555,160,404.68
  5. Step 5: Solve for x
    x = 29,555,160,404.68/192,070.47
  6. Step 6: Final answer
    x = 153,876.65

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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.