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Finding the Fourth Proportional to 174,721.60, 261,693.60 and 143,617.60

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Solution

The fourth proportional to 174,721.60, 261,693.60 and 143,617.60 is: 215,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,721.60 : 261,693.60 = 143,617.60 : x
  2. Step 2: Convert to fraction form
    174,721.60/261,693.60 = 143,617.60/x
  3. Step 3: Cross multiply
    174,721.60x = 261,693.60 × 143,617.60
  4. Step 4: Simplify right side
    174,721.60x = 37,583,806,767.36
  5. Step 5: Solve for x
    x = 37,583,806,767.36/174,721.60
  6. Step 6: Final answer
    x = 215,106.81

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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.