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Finding the Fourth Proportional to 188,933.60, 260,726.64 and 104,048.84

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Solution

The fourth proportional to 188,933.60, 260,726.64 and 104,048.84 is: 143,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,933.60 : 260,726.64 = 104,048.84 : x
  2. Step 2: Convert to fraction form
    188,933.60/260,726.64 = 104,048.84/x
  3. Step 3: Cross multiply
    188,933.60x = 260,726.64 × 104,048.84
  4. Step 4: Simplify right side
    188,933.60x = 27,128,304,449.10
  5. Step 5: Solve for x
    x = 27,128,304,449.10/188,933.60
  6. Step 6: Final answer
    x = 143,586.45

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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.