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Finding the Fourth Proportional to 77,000.92, 106,260.15 and 43,009.89

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Solution

The fourth proportional to 77,000.92, 106,260.15 and 43,009.89 is: 59,353.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,000.92 : 106,260.15 = 43,009.89 : x
  2. Step 2: Convert to fraction form
    77,000.92/106,260.15 = 43,009.89/x
  3. Step 3: Cross multiply
    77,000.92x = 106,260.15 × 43,009.89
  4. Step 4: Simplify right side
    77,000.92x = 4,570,237,362.88
  5. Step 5: Solve for x
    x = 4,570,237,362.88/77,000.92
  6. Step 6: Final answer
    x = 59,353.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.