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Finding the Fourth Proportional to 153,890.20, 230,812.20 and 48,695.50

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Solution

The fourth proportional to 153,890.20, 230,812.20 and 48,695.50 is: 73,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,890.20 : 230,812.20 = 48,695.50 : x
  2. Step 2: Convert to fraction form
    153,890.20/230,812.20 = 48,695.50/x
  3. Step 3: Cross multiply
    153,890.20x = 230,812.20 × 48,695.50
  4. Step 4: Simplify right side
    153,890.20x = 11,239,515,485.10
  5. Step 5: Solve for x
    x = 11,239,515,485.10/153,890.20
  6. Step 6: Final answer
    x = 73,035.94

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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.