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Finding the Fourth Proportional to 188,431.44, 260,030.16 and 103,548.48

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Solution

The fourth proportional to 188,431.44, 260,030.16 and 103,548.48 is: 142,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,431.44 : 260,030.16 = 103,548.48 : x
  2. Step 2: Convert to fraction form
    188,431.44/260,030.16 = 103,548.48/x
  3. Step 3: Cross multiply
    188,431.44x = 260,030.16 × 103,548.48
  4. Step 4: Simplify right side
    188,431.44x = 26,925,727,822.16
  5. Step 5: Solve for x
    x = 26,925,727,822.16/188,431.44
  6. Step 6: Final answer
    x = 142,894.03

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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.