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Finding the Fourth Proportional to 118,489.23, 162,644.76 and 104,759.73

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Solution

The fourth proportional to 118,489.23, 162,644.76 and 104,759.73 is: 143,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,489.23 : 162,644.76 = 104,759.73 : x
  2. Step 2: Convert to fraction form
    118,489.23/162,644.76 = 104,759.73/x
  3. Step 3: Cross multiply
    118,489.23x = 162,644.76 × 104,759.73
  4. Step 4: Simplify right side
    118,489.23x = 17,038,621,143.51
  5. Step 5: Solve for x
    x = 17,038,621,143.51/118,489.23
  6. Step 6: Final answer
    x = 143,798.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.