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Finding the Fourth Proportional to 61,661.58, 92,618.61 and 40,631.77

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Solution

The fourth proportional to 61,661.58, 92,618.61 and 40,631.77 is: 61,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.58 : 92,618.61 = 40,631.77 : x
  2. Step 2: Convert to fraction form
    61,661.58/92,618.61 = 40,631.77/x
  3. Step 3: Cross multiply
    61,661.58x = 92,618.61 × 40,631.77
  4. Step 4: Simplify right side
    61,661.58x = 3,763,258,059.24
  5. Step 5: Solve for x
    x = 3,763,258,059.24/61,661.58
  6. Step 6: Final answer
    x = 61,030.84

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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.