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Finding the Fourth Proportional to 238,762.98, 358,148.42 and 191,157.45

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Solution

The fourth proportional to 238,762.98, 358,148.42 and 191,157.45 is: 286,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,762.98 : 358,148.42 = 191,157.45 : x
  2. Step 2: Convert to fraction form
    238,762.98/358,148.42 = 191,157.45/x
  3. Step 3: Cross multiply
    238,762.98x = 358,148.42 × 191,157.45
  4. Step 4: Simplify right side
    238,762.98x = 68,462,737,732.94
  5. Step 5: Solve for x
    x = 68,462,737,732.94/238,762.98
  6. Step 6: Final answer
    x = 286,739.33

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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.