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Finding the Fourth Proportional to 356,878.44, 492,506.06 and 195,740.28

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Solution

The fourth proportional to 356,878.44, 492,506.06 and 195,740.28 is: 270,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,878.44 : 492,506.06 = 195,740.28 : x
  2. Step 2: Convert to fraction form
    356,878.44/492,506.06 = 195,740.28/x
  3. Step 3: Cross multiply
    356,878.44x = 492,506.06 × 195,740.28
  4. Step 4: Simplify right side
    356,878.44x = 96,403,274,086.10
  5. Step 5: Solve for x
    x = 96,403,274,086.10/356,878.44
  6. Step 6: Final answer
    x = 270,129.16

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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.