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Finding the Fourth Proportional to 161,908.60, 242,571.30 and 99,506.20

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Solution

The fourth proportional to 161,908.60, 242,571.30 and 99,506.20 is: 149,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,908.60 : 242,571.30 = 99,506.20 : x
  2. Step 2: Convert to fraction form
    161,908.60/242,571.30 = 99,506.20/x
  3. Step 3: Cross multiply
    161,908.60x = 242,571.30 × 99,506.20
  4. Step 4: Simplify right side
    161,908.60x = 24,137,348,292.06
  5. Step 5: Solve for x
    x = 24,137,348,292.06/161,908.60
  6. Step 6: Final answer
    x = 149,080.09

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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.