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Finding the Fourth Proportional to 70,075.93, 105,051.39 and 25,692.34

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Solution

The fourth proportional to 70,075.93, 105,051.39 and 25,692.34 is: 38,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,075.93 : 105,051.39 = 25,692.34 : x
  2. Step 2: Convert to fraction form
    70,075.93/105,051.39 = 25,692.34/x
  3. Step 3: Cross multiply
    70,075.93x = 105,051.39 × 25,692.34
  4. Step 4: Simplify right side
    70,075.93x = 2,699,015,504.10
  5. Step 5: Solve for x
    x = 2,699,015,504.10/70,075.93
  6. Step 6: Final answer
    x = 38,515.59

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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.