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Finding the Fourth Proportional to 97,800.75, 134,944.29 and 57,499.81

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Solution

The fourth proportional to 97,800.75, 134,944.29 and 57,499.81 is: 79,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,800.75 : 134,944.29 = 57,499.81 : x
  2. Step 2: Convert to fraction form
    97,800.75/134,944.29 = 57,499.81/x
  3. Step 3: Cross multiply
    97,800.75x = 134,944.29 × 57,499.81
  4. Step 4: Simplify right side
    97,800.75x = 7,759,271,035.58
  5. Step 5: Solve for x
    x = 7,759,271,035.58/97,800.75
  6. Step 6: Final answer
    x = 79,337.54

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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.