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Finding the Fourth Proportional to 70,934.45, 106,087.95 and 63,091.98

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Solution

The fourth proportional to 70,934.45, 106,087.95 and 63,091.98 is: 94,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,934.45 : 106,087.95 = 63,091.98 : x
  2. Step 2: Convert to fraction form
    70,934.45/106,087.95 = 63,091.98/x
  3. Step 3: Cross multiply
    70,934.45x = 106,087.95 × 63,091.98
  4. Step 4: Simplify right side
    70,934.45x = 6,693,298,819.64
  5. Step 5: Solve for x
    x = 6,693,298,819.64/70,934.45
  6. Step 6: Final answer
    x = 94,358.94

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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.