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Finding the Fourth Proportional to 84,799.99, 117,019.42 and 47,071.81

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Solution

The fourth proportional to 84,799.99, 117,019.42 and 47,071.81 is: 64,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,799.99 : 117,019.42 = 47,071.81 : x
  2. Step 2: Convert to fraction form
    84,799.99/117,019.42 = 47,071.81/x
  3. Step 3: Cross multiply
    84,799.99x = 117,019.42 × 47,071.81
  4. Step 4: Simplify right side
    84,799.99x = 5,508,316,197.10
  5. Step 5: Solve for x
    x = 5,508,316,197.10/84,799.99
  6. Step 6: Final answer
    x = 64,956.56

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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.