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Finding the Fourth Proportional to 99,658.46, 137,450.88 and 63,851.82

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Solution

The fourth proportional to 99,658.46, 137,450.88 and 63,851.82 is: 88,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658.46 : 137,450.88 = 63,851.82 : x
  2. Step 2: Convert to fraction form
    99,658.46/137,450.88 = 63,851.82/x
  3. Step 3: Cross multiply
    99,658.46x = 137,450.88 × 63,851.82
  4. Step 4: Simplify right side
    99,658.46x = 8,776,488,848.60
  5. Step 5: Solve for x
    x = 8,776,488,848.60/99,658.46
  6. Step 6: Final answer
    x = 88,065.67

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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.