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Finding the Fourth Proportional to 162,162.58, 243,354.60 and 56,981.56

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Solution

The fourth proportional to 162,162.58, 243,354.60 and 56,981.56 is: 85,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,162.58 : 243,354.60 = 56,981.56 : x
  2. Step 2: Convert to fraction form
    162,162.58/243,354.60 = 56,981.56/x
  3. Step 3: Cross multiply
    162,162.58x = 243,354.60 × 56,981.56
  4. Step 4: Simplify right side
    162,162.58x = 13,866,724,741.18
  5. Step 5: Solve for x
    x = 13,866,724,741.18/162,162.58
  6. Step 6: Final answer
    x = 85,511.25

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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.