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Finding the Fourth Proportional to 245,539.64, 338,953.86 and 190,968.32

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Solution

The fourth proportional to 245,539.64, 338,953.86 and 190,968.32 is: 263,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,539.64 : 338,953.86 = 190,968.32 : x
  2. Step 2: Convert to fraction form
    245,539.64/338,953.86 = 190,968.32/x
  3. Step 3: Cross multiply
    245,539.64x = 338,953.86 × 190,968.32
  4. Step 4: Simplify right side
    245,539.64x = 64,729,447,506.95
  5. Step 5: Solve for x
    x = 64,729,447,506.95/245,539.64
  6. Step 6: Final answer
    x = 263,621.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.