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Finding the Fourth Proportional to 88,670.84, 133,015.37 and 28,694.79

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Solution

The fourth proportional to 88,670.84, 133,015.37 and 28,694.79 is: 43,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,670.84 : 133,015.37 = 28,694.79 : x
  2. Step 2: Convert to fraction form
    88,670.84/133,015.37 = 28,694.79/x
  3. Step 3: Cross multiply
    88,670.84x = 133,015.37 × 28,694.79
  4. Step 4: Simplify right side
    88,670.84x = 3,816,847,965.45
  5. Step 5: Solve for x
    x = 3,816,847,965.45/88,670.84
  6. Step 6: Final answer
    x = 43,045.13

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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.