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Finding the Fourth Proportional to 61,072.74, 91,473.77 and 46,928.66

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Solution

The fourth proportional to 61,072.74, 91,473.77 and 46,928.66 is: 70,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,072.74 : 91,473.77 = 46,928.66 : x
  2. Step 2: Convert to fraction form
    61,072.74/91,473.77 = 46,928.66/x
  3. Step 3: Cross multiply
    61,072.74x = 91,473.77 × 46,928.66
  4. Step 4: Simplify right side
    61,072.74x = 4,292,740,759.24
  5. Step 5: Solve for x
    x = 4,292,740,759.24/61,072.74
  6. Step 6: Final answer
    x = 70,288.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.