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Finding the Fourth Proportional to 101,854.64, 140,556.55 and 55,914.27

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Solution

The fourth proportional to 101,854.64, 140,556.55 and 55,914.27 is: 77,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,854.64 : 140,556.55 = 55,914.27 : x
  2. Step 2: Convert to fraction form
    101,854.64/140,556.55 = 55,914.27/x
  3. Step 3: Cross multiply
    101,854.64x = 140,556.55 × 55,914.27
  4. Step 4: Simplify right side
    101,854.64x = 7,859,116,607.40
  5. Step 5: Solve for x
    x = 7,859,116,607.40/101,854.64
  6. Step 6: Final answer
    x = 77,160.13

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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.