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Finding the Fourth Proportional to 239,287.36, 358,903.25 and 61,780.42

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Solution

The fourth proportional to 239,287.36, 358,903.25 and 61,780.42 is: 92,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,287.36 : 358,903.25 = 61,780.42 : x
  2. Step 2: Convert to fraction form
    239,287.36/358,903.25 = 61,780.42/x
  3. Step 3: Cross multiply
    239,287.36x = 358,903.25 × 61,780.42
  4. Step 4: Simplify right side
    239,287.36x = 22,173,193,524.37
  5. Step 5: Solve for x
    x = 22,173,193,524.37/239,287.36
  6. Step 6: Final answer
    x = 92,663.46

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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.