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Finding the Fourth Proportional to 183,394.29, 253,129.14 and 111,813.78

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Solution

The fourth proportional to 183,394.29, 253,129.14 and 111,813.78 is: 154,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,394.29 : 253,129.14 = 111,813.78 : x
  2. Step 2: Convert to fraction form
    183,394.29/253,129.14 = 111,813.78/x
  3. Step 3: Cross multiply
    183,394.29x = 253,129.14 × 111,813.78
  4. Step 4: Simplify right side
    183,394.29x = 28,303,325,971.55
  5. Step 5: Solve for x
    x = 28,303,325,971.55/183,394.29
  6. Step 6: Final answer
    x = 154,330.46

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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.