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Finding the Fourth Proportional to 99,775.91, 137,692.04 and 58,941.38

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Solution

The fourth proportional to 99,775.91, 137,692.04 and 58,941.38 is: 81,339.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,775.91 : 137,692.04 = 58,941.38 : x
  2. Step 2: Convert to fraction form
    99,775.91/137,692.04 = 58,941.38/x
  3. Step 3: Cross multiply
    99,775.91x = 137,692.04 × 58,941.38
  4. Step 4: Simplify right side
    99,775.91x = 8,115,758,902.14
  5. Step 5: Solve for x
    x = 8,115,758,902.14/99,775.91
  6. Step 6: Final answer
    x = 81,339.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.