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Finding the Fourth Proportional to 57,399.93, 85,792.14 and 51,764.76

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Solution

The fourth proportional to 57,399.93, 85,792.14 and 51,764.76 is: 77,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,399.93 : 85,792.14 = 51,764.76 : x
  2. Step 2: Convert to fraction form
    57,399.93/85,792.14 = 51,764.76/x
  3. Step 3: Cross multiply
    57,399.93x = 85,792.14 × 51,764.76
  4. Step 4: Simplify right side
    57,399.93x = 4,441,009,536.99
  5. Step 5: Solve for x
    x = 4,441,009,536.99/57,399.93
  6. Step 6: Final answer
    x = 77,369.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.