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Finding the Fourth Proportional to 405,788.16, 608,682.88 and 110,300.16

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Solution

The fourth proportional to 405,788.16, 608,682.88 and 110,300.16 is: 165,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,788.16 : 608,682.88 = 110,300.16 : x
  2. Step 2: Convert to fraction form
    405,788.16/608,682.88 = 110,300.16/x
  3. Step 3: Cross multiply
    405,788.16x = 608,682.88 × 110,300.16
  4. Step 4: Simplify right side
    405,788.16x = 67,137,819,053.26
  5. Step 5: Solve for x
    x = 67,137,819,053.26/405,788.16
  6. Step 6: Final answer
    x = 165,450.41

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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.