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Finding the Fourth Proportional to 456,606.60, 684,939.87 and 119,655.51

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Solution

The fourth proportional to 456,606.60, 684,939.87 and 119,655.51 is: 179,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,606.60 : 684,939.87 = 119,655.51 : x
  2. Step 2: Convert to fraction form
    456,606.60/684,939.87 = 119,655.51/x
  3. Step 3: Cross multiply
    456,606.60x = 684,939.87 × 119,655.51
  4. Step 4: Simplify right side
    456,606.60x = 81,956,829,464.18
  5. Step 5: Solve for x
    x = 81,956,829,464.18/456,606.60
  6. Step 6: Final answer
    x = 179,491.12

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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.