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Finding the Fourth Proportional to 151,993.95, 209,769.45 and 126,455.26

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Solution

The fourth proportional to 151,993.95, 209,769.45 and 126,455.26 is: 174,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,993.95 : 209,769.45 = 126,455.26 : x
  2. Step 2: Convert to fraction form
    151,993.95/209,769.45 = 126,455.26/x
  3. Step 3: Cross multiply
    151,993.95x = 209,769.45 × 126,455.26
  4. Step 4: Simplify right side
    151,993.95x = 26,526,450,339.81
  5. Step 5: Solve for x
    x = 26,526,450,339.81/151,993.95
  6. Step 6: Final answer
    x = 174,523.07

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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.