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Finding the Fourth Proportional to 193,159.70, 289,739.55 and 165,511.70

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Solution

The fourth proportional to 193,159.70, 289,739.55 and 165,511.70 is: 248,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,159.70 : 289,739.55 = 165,511.70 : x
  2. Step 2: Convert to fraction form
    193,159.70/289,739.55 = 165,511.70/x
  3. Step 3: Cross multiply
    193,159.70x = 289,739.55 × 165,511.70
  4. Step 4: Simplify right side
    193,159.70x = 47,955,285,477.74
  5. Step 5: Solve for x
    x = 47,955,285,477.74/193,159.70
  6. Step 6: Final answer
    x = 248,267.55

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1.5x scale

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.