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Finding the Fourth Proportional to 133,959.98, 200,970.63 and 58,071.20

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Solution

The fourth proportional to 133,959.98, 200,970.63 and 58,071.20 is: 87,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,959.98 : 200,970.63 = 58,071.20 : x
  2. Step 2: Convert to fraction form
    133,959.98/200,970.63 = 58,071.20/x
  3. Step 3: Cross multiply
    133,959.98x = 200,970.63 × 58,071.20
  4. Step 4: Simplify right side
    133,959.98x = 11,670,605,648.86
  5. Step 5: Solve for x
    x = 11,670,605,648.86/133,959.98
  6. Step 6: Final answer
    x = 87,120.09

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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.