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Finding the Fourth Proportional to 70,730.79, 106,030.26 and 48,554.61

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Solution

The fourth proportional to 70,730.79, 106,030.26 and 48,554.61 is: 72,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,730.79 : 106,030.26 = 48,554.61 : x
  2. Step 2: Convert to fraction form
    70,730.79/106,030.26 = 48,554.61/x
  3. Step 3: Cross multiply
    70,730.79x = 106,030.26 × 48,554.61
  4. Step 4: Simplify right side
    70,730.79x = 5,148,257,922.50
  5. Step 5: Solve for x
    x = 5,148,257,922.50/70,730.79
  6. Step 6: Final answer
    x = 72,786.66

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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.