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Finding the Fourth Proportional to 88,670.60, 133,049.10 and 67,603.40

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Solution

The fourth proportional to 88,670.60, 133,049.10 and 67,603.40 is: 101,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,670.60 : 133,049.10 = 67,603.40 : x
  2. Step 2: Convert to fraction form
    88,670.60/133,049.10 = 67,603.40/x
  3. Step 3: Cross multiply
    88,670.60x = 133,049.10 × 67,603.40
  4. Step 4: Simplify right side
    88,670.60x = 8,994,571,526.94
  5. Step 5: Solve for x
    x = 8,994,571,526.94/88,670.60
  6. Step 6: Final answer
    x = 101,438.04

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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.