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Finding the Fourth Proportional to 183,976.64, 253,988.29 and 111,391.93

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Solution

The fourth proportional to 183,976.64, 253,988.29 and 111,391.93 is: 153,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,976.64 : 253,988.29 = 111,391.93 : x
  2. Step 2: Convert to fraction form
    183,976.64/253,988.29 = 111,391.93/x
  3. Step 3: Cross multiply
    183,976.64x = 253,988.29 × 111,391.93
  4. Step 4: Simplify right side
    183,976.64x = 28,292,245,820.50
  5. Step 5: Solve for x
    x = 28,292,245,820.50/183,976.64
  6. Step 6: Final answer
    x = 153,781.73

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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.