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Finding the Fourth Proportional to 66,692.10, 92,047.41 and 42,848.58

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Solution

The fourth proportional to 66,692.10, 92,047.41 and 42,848.58 is: 59,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,692.10 : 92,047.41 = 42,848.58 : x
  2. Step 2: Convert to fraction form
    66,692.10/92,047.41 = 42,848.58/x
  3. Step 3: Cross multiply
    66,692.10x = 92,047.41 × 42,848.58
  4. Step 4: Simplify right side
    66,692.10x = 3,944,100,811.18
  5. Step 5: Solve for x
    x = 3,944,100,811.18/66,692.10
  6. Step 6: Final answer
    x = 59,138.95

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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.