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Finding the Fourth Proportional to 456,305.04, 684,405.26 and 119,378.21

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Solution

The fourth proportional to 456,305.04, 684,405.26 and 119,378.21 is: 179,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,305.04 : 684,405.26 = 119,378.21 : x
  2. Step 2: Convert to fraction form
    456,305.04/684,405.26 = 119,378.21/x
  3. Step 3: Cross multiply
    456,305.04x = 684,405.26 × 119,378.21
  4. Step 4: Simplify right side
    456,305.04x = 81,703,071,953.64
  5. Step 5: Solve for x
    x = 81,703,071,953.64/456,305.04
  6. Step 6: Final answer
    x = 179,053.63

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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.