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Finding the Fourth Proportional to 83,075.60, 124,629.60 and 35,690.60

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Solution

The fourth proportional to 83,075.60, 124,629.60 and 35,690.60 is: 53,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,075.60 : 124,629.60 = 35,690.60 : x
  2. Step 2: Convert to fraction form
    83,075.60/124,629.60 = 35,690.60/x
  3. Step 3: Cross multiply
    83,075.60x = 124,629.60 × 35,690.60
  4. Step 4: Simplify right side
    83,075.60x = 4,448,105,201.76
  5. Step 5: Solve for x
    x = 4,448,105,201.76/83,075.60
  6. Step 6: Final answer
    x = 53,542.86

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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.