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Finding the Fourth Proportional to 238,506.36, 357,755.85 and 61,011.87

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Solution

The fourth proportional to 238,506.36, 357,755.85 and 61,011.87 is: 91,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,506.36 : 357,755.85 = 61,011.87 : x
  2. Step 2: Convert to fraction form
    238,506.36/357,755.85 = 61,011.87/x
  3. Step 3: Cross multiply
    238,506.36x = 357,755.85 × 61,011.87
  4. Step 4: Simplify right side
    238,506.36x = 21,827,353,411.94
  5. Step 5: Solve for x
    x = 21,827,353,411.94/238,506.36
  6. Step 6: Final answer
    x = 91,516.86

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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.