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Finding the Fourth Proportional to 239,159.14, 358,738.71 and 208,366.18

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Solution

The fourth proportional to 239,159.14, 358,738.71 and 208,366.18 is: 312,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,159.14 : 358,738.71 = 208,366.18 : x
  2. Step 2: Convert to fraction form
    239,159.14/358,738.71 = 208,366.18/x
  3. Step 3: Cross multiply
    239,159.14x = 358,738.71 × 208,366.18
  4. Step 4: Simplify right side
    239,159.14x = 74,749,014,620.83
  5. Step 5: Solve for x
    x = 74,749,014,620.83/239,159.14
  6. Step 6: Final answer
    x = 312,549.27

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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.