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Finding the Fourth Proportional to 71,383.70, 107,075.55 and 50,647.70

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Solution

The fourth proportional to 71,383.70, 107,075.55 and 50,647.70 is: 75,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,383.70 : 107,075.55 = 50,647.70 : x
  2. Step 2: Convert to fraction form
    71,383.70/107,075.55 = 50,647.70/x
  3. Step 3: Cross multiply
    71,383.70x = 107,075.55 × 50,647.70
  4. Step 4: Simplify right side
    71,383.70x = 5,423,130,333.74
  5. Step 5: Solve for x
    x = 5,423,130,333.74/71,383.70
  6. Step 6: Final answer
    x = 75,971.55

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1.5x scale

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.