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Finding the Fourth Proportional to 197,075.56, 295,642.54 and 72,406.84

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Solution

The fourth proportional to 197,075.56, 295,642.54 and 72,406.84 is: 108,620.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,075.56 : 295,642.54 = 72,406.84 : x
  2. Step 2: Convert to fraction form
    197,075.56/295,642.54 = 72,406.84/x
  3. Step 3: Cross multiply
    197,075.56x = 295,642.54 × 72,406.84
  4. Step 4: Simplify right side
    197,075.56x = 21,406,542,090.97
  5. Step 5: Solve for x
    x = 21,406,542,090.97/197,075.56
  6. Step 6: Final answer
    x = 108,620.99

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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.