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Finding the Fourth Proportional to 333,303.96, 499,844.93 and 143,645.91

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Solution

The fourth proportional to 333,303.96, 499,844.93 and 143,645.91 is: 215,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,303.96 : 499,844.93 = 143,645.91 : x
  2. Step 2: Convert to fraction form
    333,303.96/499,844.93 = 143,645.91/x
  3. Step 3: Cross multiply
    333,303.96x = 499,844.93 × 143,645.91
  4. Step 4: Simplify right side
    333,303.96x = 71,800,677,236.09
  5. Step 5: Solve for x
    x = 71,800,677,236.09/333,303.96
  6. Step 6: Final answer
    x = 215,421.01

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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.