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Finding the Fourth Proportional to 139,927.26, 193,099.68 and 79,498.00

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Solution

The fourth proportional to 139,927.26, 193,099.68 and 79,498.00 is: 109,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927.26 : 193,099.68 = 79,498.00 : x
  2. Step 2: Convert to fraction form
    139,927.26/193,099.68 = 79,498.00/x
  3. Step 3: Cross multiply
    139,927.26x = 193,099.68 × 79,498.00
  4. Step 4: Simplify right side
    139,927.26x = 15,351,038,602.01
  5. Step 5: Solve for x
    x = 15,351,038,602.01/139,927.26
  6. Step 6: Final answer
    x = 109,707.27

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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.