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Finding the Fourth Proportional to 123,677.64, 170,675.64 and 67,089.42

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Solution

The fourth proportional to 123,677.64, 170,675.64 and 67,089.42 is: 92,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,677.64 : 170,675.64 = 67,089.42 : x
  2. Step 2: Convert to fraction form
    123,677.64/170,675.64 = 67,089.42/x
  3. Step 3: Cross multiply
    123,677.64x = 170,675.64 × 67,089.42
  4. Step 4: Simplify right side
    123,677.64x = 11,450,529,695.73
  5. Step 5: Solve for x
    x = 11,450,529,695.73/123,677.64
  6. Step 6: Final answer
    x = 92,583.67

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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.