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Finding the Fourth Proportional to 99,609.80, 149,496.30 and 98,832.20

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Solution

The fourth proportional to 99,609.80, 149,496.30 and 98,832.20 is: 148,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,609.80 : 149,496.30 = 98,832.20 : x
  2. Step 2: Convert to fraction form
    99,609.80/149,496.30 = 98,832.20/x
  3. Step 3: Cross multiply
    99,609.80x = 149,496.30 × 98,832.20
  4. Step 4: Simplify right side
    99,609.80x = 14,775,048,220.86
  5. Step 5: Solve for x
    x = 14,775,048,220.86/99,609.80
  6. Step 6: Final answer
    x = 148,329.26

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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.