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Finding the Fourth Proportional to 258,800.30, 357,152.42 and 140,935.11

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Solution

The fourth proportional to 258,800.30, 357,152.42 and 140,935.11 is: 194,494.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,800.30 : 357,152.42 = 140,935.11 : x
  2. Step 2: Convert to fraction form
    258,800.30/357,152.42 = 140,935.11/x
  3. Step 3: Cross multiply
    258,800.30x = 357,152.42 × 140,935.11
  4. Step 4: Simplify right side
    258,800.30x = 50,335,315,599.47
  5. Step 5: Solve for x
    x = 50,335,315,599.47/258,800.30
  6. Step 6: Final answer
    x = 194,494.81

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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.