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Finding the Fourth Proportional to 111,962.73, 154,502.87 and 61,652.01

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Solution

The fourth proportional to 111,962.73, 154,502.87 and 61,652.01 is: 85,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,962.73 : 154,502.87 = 61,652.01 : x
  2. Step 2: Convert to fraction form
    111,962.73/154,502.87 = 61,652.01/x
  3. Step 3: Cross multiply
    111,962.73x = 154,502.87 × 61,652.01
  4. Step 4: Simplify right side
    111,962.73x = 9,525,412,178.01
  5. Step 5: Solve for x
    x = 9,525,412,178.01/111,962.73
  6. Step 6: Final answer
    x = 85,076.63

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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.