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Finding the Fourth Proportional to 238,871.07, 358,319.16 and 61,379.28

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Solution

The fourth proportional to 238,871.07, 358,319.16 and 61,379.28 is: 92,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,871.07 : 358,319.16 = 61,379.28 : x
  2. Step 2: Convert to fraction form
    238,871.07/358,319.16 = 61,379.28/x
  3. Step 3: Cross multiply
    238,871.07x = 358,319.16 × 61,379.28
  4. Step 4: Simplify right side
    238,871.07x = 21,993,372,051.00
  5. Step 5: Solve for x
    x = 21,993,372,051.00/238,871.07
  6. Step 6: Final answer
    x = 92,072.15

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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.