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Finding the Fourth Proportional to 240,903.52, 361,478.64 and 114,686.56

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Solution

The fourth proportional to 240,903.52, 361,478.64 and 114,686.56 is: 172,088.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,903.52 : 361,478.64 = 114,686.56 : x
  2. Step 2: Convert to fraction form
    240,903.52/361,478.64 = 114,686.56/x
  3. Step 3: Cross multiply
    240,903.52x = 361,478.64 × 114,686.56
  4. Step 4: Simplify right side
    240,903.52x = 41,456,741,735.08
  5. Step 5: Solve for x
    x = 41,456,741,735.08/240,903.52
  6. Step 6: Final answer
    x = 172,088.57

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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.