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Finding the Fourth Proportional to 70,486.60, 105,522.48 and 47,054.92

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Solution

The fourth proportional to 70,486.60, 105,522.48 and 47,054.92 is: 70,443.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,486.60 : 105,522.48 = 47,054.92 : x
  2. Step 2: Convert to fraction form
    70,486.60/105,522.48 = 47,054.92/x
  3. Step 3: Cross multiply
    70,486.60x = 105,522.48 × 47,054.92
  4. Step 4: Simplify right side
    70,486.60x = 4,965,351,854.60
  5. Step 5: Solve for x
    x = 4,965,351,854.60/70,486.60
  6. Step 6: Final answer
    x = 70,443.91

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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.