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Finding the Fourth Proportional to 125,153.40, 188,262.84 and 113,448.33

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Solution

The fourth proportional to 125,153.40, 188,262.84 and 113,448.33 is: 170,655.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,153.40 : 188,262.84 = 113,448.33 : x
  2. Step 2: Convert to fraction form
    125,153.40/188,262.84 = 113,448.33/x
  3. Step 3: Cross multiply
    125,153.40x = 188,262.84 × 113,448.33
  4. Step 4: Simplify right side
    125,153.40x = 21,358,104,799.06
  5. Step 5: Solve for x
    x = 21,358,104,799.06/125,153.40
  6. Step 6: Final answer
    x = 170,655.41

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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.