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Finding the Fourth Proportional to 321,303.30, 481,868.55 and 134,276.10

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Solution

The fourth proportional to 321,303.30, 481,868.55 and 134,276.10 is: 201,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,303.30 : 481,868.55 = 134,276.10 : x
  2. Step 2: Convert to fraction form
    321,303.30/481,868.55 = 134,276.10/x
  3. Step 3: Cross multiply
    321,303.30x = 481,868.55 × 134,276.10
  4. Step 4: Simplify right side
    321,303.30x = 64,703,429,606.66
  5. Step 5: Solve for x
    x = 64,703,429,606.66/321,303.30
  6. Step 6: Final answer
    x = 201,378.04

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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.