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Finding the Fourth Proportional to 188,645.90, 282,495.62 and 112,697.58

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Solution

The fourth proportional to 188,645.90, 282,495.62 and 112,697.58 is: 168,763.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,645.90 : 282,495.62 = 112,697.58 : x
  2. Step 2: Convert to fraction form
    188,645.90/282,495.62 = 112,697.58/x
  3. Step 3: Cross multiply
    188,645.90x = 282,495.62 × 112,697.58
  4. Step 4: Simplify right side
    188,645.90x = 31,836,571,852.74
  5. Step 5: Solve for x
    x = 31,836,571,852.74/188,645.90
  6. Step 6: Final answer
    x = 168,763.66

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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.