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Finding the Fourth Proportional to 104,421.54, 144,036.18 and 61,950

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Solution

The fourth proportional to 104,421.54, 144,036.18 and 61,950 is: 85,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,421.54 : 144,036.18 = 61,950 : x
  2. Step 2: Convert to fraction form
    104,421.54/144,036.18 = 61,950/x
  3. Step 3: Cross multiply
    104,421.54x = 144,036.18 × 61,950
  4. Step 4: Simplify right side
    104,421.54x = 8,923,041,351
  5. Step 5: Solve for x
    x = 8,923,041,351/104,421.54
  6. Step 6: Final answer
    x = 85,452.11

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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.