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Finding the Fourth Proportional to 101,266.59, 139,756.08 and 55,948.54

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Solution

The fourth proportional to 101,266.59, 139,756.08 and 55,948.54 is: 77,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.59 : 139,756.08 = 55,948.54 : x
  2. Step 2: Convert to fraction form
    101,266.59/139,756.08 = 55,948.54/x
  3. Step 3: Cross multiply
    101,266.59x = 139,756.08 × 55,948.54
  4. Step 4: Simplify right side
    101,266.59x = 7,819,148,632.12
  5. Step 5: Solve for x
    x = 7,819,148,632.12/101,266.59
  6. Step 6: Final answer
    x = 77,213.51

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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.