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Finding the Fourth Proportional to 209,605.51, 289,246.53 and 114,112.54

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Solution

The fourth proportional to 209,605.51, 289,246.53 and 114,112.54 is: 157,470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,605.51 : 289,246.53 = 114,112.54 : x
  2. Step 2: Convert to fraction form
    209,605.51/289,246.53 = 114,112.54/x
  3. Step 3: Cross multiply
    209,605.51x = 289,246.53 × 114,112.54
  4. Step 4: Simplify right side
    209,605.51x = 33,006,656,224.49
  5. Step 5: Solve for x
    x = 33,006,656,224.49/209,605.51
  6. Step 6: Final answer
    x = 157,470.37

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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.