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Finding the Fourth Proportional to 86,133.33, 129,047.31 and 73,526.94

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Solution

The fourth proportional to 86,133.33, 129,047.31 and 73,526.94 is: 110,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,133.33 : 129,047.31 = 73,526.94 : x
  2. Step 2: Convert to fraction form
    86,133.33/129,047.31 = 73,526.94/x
  3. Step 3: Cross multiply
    86,133.33x = 129,047.31 × 73,526.94
  4. Step 4: Simplify right side
    86,133.33x = 9,488,453,819.53
  5. Step 5: Solve for x
    x = 9,488,453,819.53/86,133.33
  6. Step 6: Final answer
    x = 110,160.07

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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.