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Finding the Fourth Proportional to 101,277.83, 139,751.49 and 55,953.11

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Solution

The fourth proportional to 101,277.83, 139,751.49 and 55,953.11 is: 77,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,277.83 : 139,751.49 = 55,953.11 : x
  2. Step 2: Convert to fraction form
    101,277.83/139,751.49 = 55,953.11/x
  3. Step 3: Cross multiply
    101,277.83x = 139,751.49 × 55,953.11
  4. Step 4: Simplify right side
    101,277.83x = 7,819,530,492.63
  5. Step 5: Solve for x
    x = 7,819,530,492.63/101,277.83
  6. Step 6: Final answer
    x = 77,208.71

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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.