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Finding the Fourth Proportional to 456,871.68, 685,224.96 and 124,369.92

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Solution

The fourth proportional to 456,871.68, 685,224.96 and 124,369.92 is: 186,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,871.68 : 685,224.96 = 124,369.92 : x
  2. Step 2: Convert to fraction form
    456,871.68/685,224.96 = 124,369.92/x
  3. Step 3: Cross multiply
    456,871.68x = 685,224.96 × 124,369.92
  4. Step 4: Simplify right side
    456,871.68x = 85,221,373,457.20
  5. Step 5: Solve for x
    x = 85,221,373,457.20/456,871.68
  6. Step 6: Final answer
    x = 186,532.41

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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.