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Finding the Fourth Proportional to 351,666.09, 485,298.54 and 190,525.50

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Solution

The fourth proportional to 351,666.09, 485,298.54 and 190,525.50 is: 262,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,666.09 : 485,298.54 = 190,525.50 : x
  2. Step 2: Convert to fraction form
    351,666.09/485,298.54 = 190,525.50/x
  3. Step 3: Cross multiply
    351,666.09x = 485,298.54 × 190,525.50
  4. Step 4: Simplify right side
    351,666.09x = 92,461,746,982.77
  5. Step 5: Solve for x
    x = 92,461,746,982.77/351,666.09
  6. Step 6: Final answer
    x = 262,924.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.