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Finding the Fourth Proportional to 162,054.60, 243,051.12 and 68,625.96

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Solution

The fourth proportional to 162,054.60, 243,051.12 and 68,625.96 is: 102,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,054.60 : 243,051.12 = 68,625.96 : x
  2. Step 2: Convert to fraction form
    162,054.60/243,051.12 = 68,625.96/x
  3. Step 3: Cross multiply
    162,054.60x = 243,051.12 × 68,625.96
  4. Step 4: Simplify right side
    162,054.60x = 16,679,616,439.08
  5. Step 5: Solve for x
    x = 16,679,616,439.08/162,054.60
  6. Step 6: Final answer
    x = 102,925.91

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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.