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Finding the Fourth Proportional to 66,692.48, 92,047.93 and 42,848.96

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Solution

The fourth proportional to 66,692.48, 92,047.93 and 42,848.96 is: 59,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,692.48 : 92,047.93 = 42,848.96 : x
  2. Step 2: Convert to fraction form
    66,692.48/92,047.93 = 42,848.96/x
  3. Step 3: Cross multiply
    66,692.48x = 92,047.93 × 42,848.96
  4. Step 4: Simplify right side
    66,692.48x = 3,944,157,503.29
  5. Step 5: Solve for x
    x = 3,944,157,503.29/66,692.48
  6. Step 6: Final answer
    x = 59,139.47

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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.