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Finding the Fourth Proportional to 101,526.92, 139,972.92 and 83,310.92

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Solution

The fourth proportional to 101,526.92, 139,972.92 and 83,310.92 is: 114,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,526.92 : 139,972.92 = 83,310.92 : x
  2. Step 2: Convert to fraction form
    101,526.92/139,972.92 = 83,310.92/x
  3. Step 3: Cross multiply
    101,526.92x = 139,972.92 × 83,310.92
  4. Step 4: Simplify right side
    101,526.92x = 11,661,272,740.29
  5. Step 5: Solve for x
    x = 11,661,272,740.29/101,526.92
  6. Step 6: Final answer
    x = 114,858.92

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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.