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Finding the Fourth Proportional to 261,692.70, 392,567.85 and 95,516.70

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Solution

The fourth proportional to 261,692.70, 392,567.85 and 95,516.70 is: 143,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,692.70 : 392,567.85 = 95,516.70 : x
  2. Step 2: Convert to fraction form
    261,692.70/392,567.85 = 95,516.70/x
  3. Step 3: Cross multiply
    261,692.70x = 392,567.85 × 95,516.70
  4. Step 4: Simplify right side
    261,692.70x = 37,496,785,558.10
  5. Step 5: Solve for x
    x = 37,496,785,558.10/261,692.70
  6. Step 6: Final answer
    x = 143,285.56

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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.