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Finding the Fourth Proportional to 99,726.20, 149,224.80 and 73,482.20

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Solution

The fourth proportional to 99,726.20, 149,224.80 and 73,482.20 is: 109,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,726.20 : 149,224.80 = 73,482.20 : x
  2. Step 2: Convert to fraction form
    99,726.20/149,224.80 = 73,482.20/x
  3. Step 3: Cross multiply
    99,726.20x = 149,224.80 × 73,482.20
  4. Step 4: Simplify right side
    99,726.20x = 10,965,366,598.56
  5. Step 5: Solve for x
    x = 10,965,366,598.56/99,726.20
  6. Step 6: Final answer
    x = 109,954.72

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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.