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Finding the Fourth Proportional to 74,607.55, 111,822.32 and 51,995.79

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Solution

The fourth proportional to 74,607.55, 111,822.32 and 51,995.79 is: 77,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,607.55 : 111,822.32 = 51,995.79 : x
  2. Step 2: Convert to fraction form
    74,607.55/111,822.32 = 51,995.79/x
  3. Step 3: Cross multiply
    74,607.55x = 111,822.32 × 51,995.79
  4. Step 4: Simplify right side
    74,607.55x = 5,814,289,998.02
  5. Step 5: Solve for x
    x = 5,814,289,998.02/74,607.55
  6. Step 6: Final answer
    x = 77,931.66

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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.