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Finding the Fourth Proportional to 99,880.84, 149,717.58 and 47,250.28

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Solution

The fourth proportional to 99,880.84, 149,717.58 and 47,250.28 is: 70,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,880.84 : 149,717.58 = 47,250.28 : x
  2. Step 2: Convert to fraction form
    99,880.84/149,717.58 = 47,250.28/x
  3. Step 3: Cross multiply
    99,880.84x = 149,717.58 × 47,250.28
  4. Step 4: Simplify right side
    99,880.84x = 7,074,197,575.92
  5. Step 5: Solve for x
    x = 7,074,197,575.92/99,880.84
  6. Step 6: Final answer
    x = 70,826.37

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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.