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Finding the Fourth Proportional to 483,708.30, 725,564.21 and 146,751.81

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Solution

The fourth proportional to 483,708.30, 725,564.21 and 146,751.81 is: 220,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,708.30 : 725,564.21 = 146,751.81 : x
  2. Step 2: Convert to fraction form
    483,708.30/725,564.21 = 146,751.81/x
  3. Step 3: Cross multiply
    483,708.30x = 725,564.21 × 146,751.81
  4. Step 4: Simplify right side
    483,708.30x = 106,477,860,354.96
  5. Step 5: Solve for x
    x = 106,477,860,354.96/483,708.30
  6. Step 6: Final answer
    x = 220,128.25

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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.