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Finding the Fourth Proportional to 84,792.60, 117,007.93 and 47,063.88

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Solution

The fourth proportional to 84,792.60, 117,007.93 and 47,063.88 is: 64,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,792.60 : 117,007.93 = 47,063.88 : x
  2. Step 2: Convert to fraction form
    84,792.60/117,007.93 = 47,063.88/x
  3. Step 3: Cross multiply
    84,792.60x = 117,007.93 × 47,063.88
  4. Step 4: Simplify right side
    84,792.60x = 5,506,846,473.87
  5. Step 5: Solve for x
    x = 5,506,846,473.87/84,792.60
  6. Step 6: Final answer
    x = 64,944.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.