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Finding the Fourth Proportional to 111,058.16, 166,652.76 and 40,986.68

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Solution

The fourth proportional to 111,058.16, 166,652.76 and 40,986.68 is: 61,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,058.16 : 166,652.76 = 40,986.68 : x
  2. Step 2: Convert to fraction form
    111,058.16/166,652.76 = 40,986.68/x
  3. Step 3: Cross multiply
    111,058.16x = 166,652.76 × 40,986.68
  4. Step 4: Simplify right side
    111,058.16x = 6,830,543,345.24
  5. Step 5: Solve for x
    x = 6,830,543,345.24/111,058.16
  6. Step 6: Final answer
    x = 61,504.20

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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.