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Finding the Fourth Proportional to 70,945.92, 106,347.02 and 46,001.79

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Solution

The fourth proportional to 70,945.92, 106,347.02 and 46,001.79 is: 68,956.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,945.92 : 106,347.02 = 46,001.79 : x
  2. Step 2: Convert to fraction form
    70,945.92/106,347.02 = 46,001.79/x
  3. Step 3: Cross multiply
    70,945.92x = 106,347.02 × 46,001.79
  4. Step 4: Simplify right side
    70,945.92x = 4,892,153,051.16
  5. Step 5: Solve for x
    x = 4,892,153,051.16/70,945.92
  6. Step 6: Final answer
    x = 68,956.09

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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.