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Finding the Fourth Proportional to 124,556.52, 171,893.16 and 70,851

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Solution

The fourth proportional to 124,556.52, 171,893.16 and 70,851 is: 97,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,556.52 : 171,893.16 = 70,851 : x
  2. Step 2: Convert to fraction form
    124,556.52/171,893.16 = 70,851/x
  3. Step 3: Cross multiply
    124,556.52x = 171,893.16 × 70,851
  4. Step 4: Simplify right side
    124,556.52x = 12,178,802,279.16
  5. Step 5: Solve for x
    x = 12,178,802,279.16/124,556.52
  6. Step 6: Final answer
    x = 97,777.32

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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.