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Finding the Fourth Proportional to 165,671.46, 248,541.21 and 53,317.98

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Solution

The fourth proportional to 165,671.46, 248,541.21 and 53,317.98 is: 79,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,671.46 : 248,541.21 = 53,317.98 : x
  2. Step 2: Convert to fraction form
    165,671.46/248,541.21 = 53,317.98/x
  3. Step 3: Cross multiply
    165,671.46x = 248,541.21 × 53,317.98
  4. Step 4: Simplify right side
    165,671.46x = 13,251,715,263.96
  5. Step 5: Solve for x
    x = 13,251,715,263.96/165,671.46
  6. Step 6: Final answer
    x = 79,987.92

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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.