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Finding the Fourth Proportional to 351,210.74, 484,672.34 and 190,065.80

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Solution

The fourth proportional to 351,210.74, 484,672.34 and 190,065.80 is: 262,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,210.74 : 484,672.34 = 190,065.80 : x
  2. Step 2: Convert to fraction form
    351,210.74/484,672.34 = 190,065.80/x
  3. Step 3: Cross multiply
    351,210.74x = 484,672.34 × 190,065.80
  4. Step 4: Simplify right side
    351,210.74x = 92,119,632,666.28
  5. Step 5: Solve for x
    x = 92,119,632,666.28/351,210.74
  6. Step 6: Final answer
    x = 262,291.62

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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.