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Finding the Fourth Proportional to 258,167.90, 356,172.21 and 190,345.84

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Solution

The fourth proportional to 258,167.90, 356,172.21 and 190,345.84 is: 262,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,167.90 : 356,172.21 = 190,345.84 : x
  2. Step 2: Convert to fraction form
    258,167.90/356,172.21 = 190,345.84/x
  3. Step 3: Cross multiply
    258,167.90x = 356,172.21 × 190,345.84
  4. Step 4: Simplify right side
    258,167.90x = 67,795,897,606.68
  5. Step 5: Solve for x
    x = 67,795,897,606.68/258,167.90
  6. Step 6: Final answer
    x = 262,603.90

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1.5x scale

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.