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Finding the Fourth Proportional to 188,858.16, 260,598.60 and 103,973.40

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Solution

The fourth proportional to 188,858.16, 260,598.60 and 103,973.40 is: 143,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,858.16 : 260,598.60 = 103,973.40 : x
  2. Step 2: Convert to fraction form
    188,858.16/260,598.60 = 103,973.40/x
  3. Step 3: Cross multiply
    188,858.16x = 260,598.60 × 103,973.40
  4. Step 4: Simplify right side
    188,858.16x = 27,095,322,477.24
  5. Step 5: Solve for x
    x = 27,095,322,477.24/188,858.16
  6. Step 6: Final answer
    x = 143,469.16

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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.