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Finding the Fourth Proportional to 134,648.96, 185,808.96 and 74,222.96

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Solution

The fourth proportional to 134,648.96, 185,808.96 and 74,222.96 is: 102,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,648.96 : 185,808.96 = 74,222.96 : x
  2. Step 2: Convert to fraction form
    134,648.96/185,808.96 = 74,222.96/x
  3. Step 3: Cross multiply
    134,648.96x = 185,808.96 × 74,222.96
  4. Step 4: Simplify right side
    134,648.96x = 13,791,291,005.72
  5. Step 5: Solve for x
    x = 13,791,291,005.72/134,648.96
  6. Step 6: Final answer
    x = 102,424.04

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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.