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Finding the Fourth Proportional to 56,075.60, 84,230.40 and 47,327.60

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Solution

The fourth proportional to 56,075.60, 84,230.40 and 47,327.60 is: 71,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,075.60 : 84,230.40 = 47,327.60 : x
  2. Step 2: Convert to fraction form
    56,075.60/84,230.40 = 47,327.60/x
  3. Step 3: Cross multiply
    56,075.60x = 84,230.40 × 47,327.60
  4. Step 4: Simplify right side
    56,075.60x = 3,986,422,679.04
  5. Step 5: Solve for x
    x = 3,986,422,679.04/56,075.60
  6. Step 6: Final answer
    x = 71,090.15

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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.