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Finding the Fourth Proportional to 134,658.86, 185,820.86 and 74,226.38

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Solution

The fourth proportional to 134,658.86, 185,820.86 and 74,226.38 is: 102,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,658.86 : 185,820.86 = 74,226.38 : x
  2. Step 2: Convert to fraction form
    134,658.86/185,820.86 = 74,226.38/x
  3. Step 3: Cross multiply
    134,658.86x = 185,820.86 × 74,226.38
  4. Step 4: Simplify right side
    134,658.86x = 13,792,808,466.05
  5. Step 5: Solve for x
    x = 13,792,808,466.05/134,658.86
  6. Step 6: Final answer
    x = 102,427.79

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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.