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Finding the Fourth Proportional to 70,075.68, 105,051.01 and 25,692.09

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Solution

The fourth proportional to 70,075.68, 105,051.01 and 25,692.09 is: 38,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,075.68 : 105,051.01 = 25,692.09 : x
  2. Step 2: Convert to fraction form
    70,075.68/105,051.01 = 25,692.09/x
  3. Step 3: Cross multiply
    70,075.68x = 105,051.01 × 25,692.09
  4. Step 4: Simplify right side
    70,075.68x = 2,698,980,003.51
  5. Step 5: Solve for x
    x = 2,698,980,003.51/70,075.68
  6. Step 6: Final answer
    x = 38,515.22

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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.