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Finding the Fourth Proportional to 222,065.84, 306,443.22 and 126,603.28

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Solution

The fourth proportional to 222,065.84, 306,443.22 and 126,603.28 is: 174,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,065.84 : 306,443.22 = 126,603.28 : x
  2. Step 2: Convert to fraction form
    222,065.84/306,443.22 = 126,603.28/x
  3. Step 3: Cross multiply
    222,065.84x = 306,443.22 × 126,603.28
  4. Step 4: Simplify right side
    222,065.84x = 38,796,716,785.76
  5. Step 5: Solve for x
    x = 38,796,716,785.76/222,065.84
  6. Step 6: Final answer
    x = 174,708.17

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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.