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Finding the Fourth Proportional to 358,852.17, 538,392.57 and 106,134.21

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Solution

The fourth proportional to 358,852.17, 538,392.57 and 106,134.21 is: 159,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,852.17 : 538,392.57 = 106,134.21 : x
  2. Step 2: Convert to fraction form
    358,852.17/538,392.57 = 106,134.21/x
  3. Step 3: Cross multiply
    358,852.17x = 538,392.57 × 106,134.21
  4. Step 4: Simplify right side
    358,852.17x = 57,141,870,086.82
  5. Step 5: Solve for x
    x = 57,141,870,086.82/358,852.17
  6. Step 6: Final answer
    x = 159,235.12

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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.