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Finding the Fourth Proportional to 196,148.60, 269,835.60 and 171,840.08

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Solution

The fourth proportional to 196,148.60, 269,835.60 and 171,840.08 is: 236,395.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,148.60 : 269,835.60 = 171,840.08 : x
  2. Step 2: Convert to fraction form
    196,148.60/269,835.60 = 171,840.08/x
  3. Step 3: Cross multiply
    196,148.60x = 269,835.60 × 171,840.08
  4. Step 4: Simplify right side
    196,148.60x = 46,368,571,090.85
  5. Step 5: Solve for x
    x = 46,368,571,090.85/196,148.60
  6. Step 6: Final answer
    x = 236,395.12

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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.