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Finding the Fourth Proportional to 162,385.70, 243,615.45 and 73,664.60

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Solution

The fourth proportional to 162,385.70, 243,615.45 and 73,664.60 is: 110,513.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,385.70 : 243,615.45 = 73,664.60 : x
  2. Step 2: Convert to fraction form
    162,385.70/243,615.45 = 73,664.60/x
  3. Step 3: Cross multiply
    162,385.70x = 243,615.45 × 73,664.60
  4. Step 4: Simplify right side
    162,385.70x = 17,945,834,678.07
  5. Step 5: Solve for x
    x = 17,945,834,678.07/162,385.70
  6. Step 6: Final answer
    x = 110,513.64

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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.