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Finding the Fourth Proportional to 99,755.48, 149,662.20 and 37,430.84

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Solution

The fourth proportional to 99,755.48, 149,662.20 and 37,430.84 is: 56,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,755.48 : 149,662.20 = 37,430.84 : x
  2. Step 2: Convert to fraction form
    99,755.48/149,662.20 = 37,430.84/x
  3. Step 3: Cross multiply
    99,755.48x = 149,662.20 × 37,430.84
  4. Step 4: Simplify right side
    99,755.48x = 5,601,981,862.25
  5. Step 5: Solve for x
    x = 5,601,981,862.25/99,755.48
  6. Step 6: Final answer
    x = 56,157.13

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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.