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Finding the Fourth Proportional to 238,422.69, 329,054.81 and 153,785.79

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Solution

The fourth proportional to 238,422.69, 329,054.81 and 153,785.79 is: 212,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,422.69 : 329,054.81 = 153,785.79 : x
  2. Step 2: Convert to fraction form
    238,422.69/329,054.81 = 153,785.79/x
  3. Step 3: Cross multiply
    238,422.69x = 329,054.81 × 153,785.79
  4. Step 4: Simplify right side
    238,422.69x = 50,603,953,140.22
  5. Step 5: Solve for x
    x = 50,603,953,140.22/238,422.69
  6. Step 6: Final answer
    x = 212,244.70

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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.