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Finding the Fourth Proportional to 243,353.70, 365,030.55 and 159,372.90

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Solution

The fourth proportional to 243,353.70, 365,030.55 and 159,372.90 is: 239,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.70 : 365,030.55 = 159,372.90 : x
  2. Step 2: Convert to fraction form
    243,353.70/365,030.55 = 159,372.90/x
  3. Step 3: Cross multiply
    243,353.70x = 365,030.55 × 159,372.90
  4. Step 4: Simplify right side
    243,353.70x = 58,175,977,342.10
  5. Step 5: Solve for x
    x = 58,175,977,342.10/243,353.70
  6. Step 6: Final answer
    x = 239,059.35

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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.