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Finding the Fourth Proportional to 99,383.70, 149,075.55 and 63,954.30

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Solution

The fourth proportional to 99,383.70, 149,075.55 and 63,954.30 is: 95,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,383.70 : 149,075.55 = 63,954.30 : x
  2. Step 2: Convert to fraction form
    99,383.70/149,075.55 = 63,954.30/x
  3. Step 3: Cross multiply
    99,383.70x = 149,075.55 × 63,954.30
  4. Step 4: Simplify right side
    99,383.70x = 9,534,022,447.37
  5. Step 5: Solve for x
    x = 9,534,022,447.37/99,383.70
  6. Step 6: Final answer
    x = 95,931.45

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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.