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Finding the Fourth Proportional to 225,443.00, 311,322.08 and 145,010.16

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Solution

The fourth proportional to 225,443.00, 311,322.08 and 145,010.16 is: 200,249.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,443.00 : 311,322.08 = 145,010.16 : x
  2. Step 2: Convert to fraction form
    225,443.00/311,322.08 = 145,010.16/x
  3. Step 3: Cross multiply
    225,443.00x = 311,322.08 × 145,010.16
  4. Step 4: Simplify right side
    225,443.00x = 45,144,864,994.86
  5. Step 5: Solve for x
    x = 45,144,864,994.86/225,443.00
  6. Step 6: Final answer
    x = 200,249.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.