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Finding the Fourth Proportional to 188,541.48, 260,180.60 and 103,657.89

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Solution

The fourth proportional to 188,541.48, 260,180.60 and 103,657.89 is: 143,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,541.48 : 260,180.60 = 103,657.89 : x
  2. Step 2: Convert to fraction form
    188,541.48/260,180.60 = 103,657.89/x
  3. Step 3: Cross multiply
    188,541.48x = 260,180.60 × 103,657.89
  4. Step 4: Simplify right side
    188,541.48x = 26,969,771,496.64
  5. Step 5: Solve for x
    x = 26,969,771,496.64/188,541.48
  6. Step 6: Final answer
    x = 143,044.23

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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.