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Finding the Fourth Proportional to 101,814.60, 152,794.80 and 42,692.70

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Solution

The fourth proportional to 101,814.60, 152,794.80 and 42,692.70 is: 64,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,814.60 : 152,794.80 = 42,692.70 : x
  2. Step 2: Convert to fraction form
    101,814.60/152,794.80 = 42,692.70/x
  3. Step 3: Cross multiply
    101,814.60x = 152,794.80 × 42,692.70
  4. Step 4: Simplify right side
    101,814.60x = 6,523,222,557.96
  5. Step 5: Solve for x
    x = 6,523,222,557.96/101,814.60
  6. Step 6: Final answer
    x = 64,069.62

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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.