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Finding the Fourth Proportional to 69,605.53, 96,055.88 and 42,747.95

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Solution

The fourth proportional to 69,605.53, 96,055.88 and 42,747.95 is: 58,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,605.53 : 96,055.88 = 42,747.95 : x
  2. Step 2: Convert to fraction form
    69,605.53/96,055.88 = 42,747.95/x
  3. Step 3: Cross multiply
    69,605.53x = 96,055.88 × 42,747.95
  4. Step 4: Simplify right side
    69,605.53x = 4,106,191,981.85
  5. Step 5: Solve for x
    x = 4,106,191,981.85/69,605.53
  6. Step 6: Final answer
    x = 58,992.33

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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.