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Finding the Fourth Proportional to 162,030.70, 243,046.05 and 122,664.70

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Solution

The fourth proportional to 162,030.70, 243,046.05 and 122,664.70 is: 183,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,030.70 : 243,046.05 = 122,664.70 : x
  2. Step 2: Convert to fraction form
    162,030.70/243,046.05 = 122,664.70/x
  3. Step 3: Cross multiply
    162,030.70x = 243,046.05 × 122,664.70
  4. Step 4: Simplify right side
    162,030.70x = 29,813,170,809.44
  5. Step 5: Solve for x
    x = 29,813,170,809.44/162,030.70
  6. Step 6: Final answer
    x = 183,997.05

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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.