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Finding the Fourth Proportional to 245,552.40, 368,458.20 and 112,453.20

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Solution

The fourth proportional to 245,552.40, 368,458.20 and 112,453.20 is: 168,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,552.40 : 368,458.20 = 112,453.20 : x
  2. Step 2: Convert to fraction form
    245,552.40/368,458.20 = 112,453.20/x
  3. Step 3: Cross multiply
    245,552.40x = 368,458.20 × 112,453.20
  4. Step 4: Simplify right side
    245,552.40x = 41,434,303,656.24
  5. Step 5: Solve for x
    x = 41,434,303,656.24/245,552.40
  6. Step 6: Final answer
    x = 168,739.15

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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.