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Finding the Fourth Proportional to 148,606.56, 205,027.28 and 84,899.28

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Solution

The fourth proportional to 148,606.56, 205,027.28 and 84,899.28 is: 117,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,606.56 : 205,027.28 = 84,899.28 : x
  2. Step 2: Convert to fraction form
    148,606.56/205,027.28 = 84,899.28/x
  3. Step 3: Cross multiply
    148,606.56x = 205,027.28 × 84,899.28
  4. Step 4: Simplify right side
    148,606.56x = 17,406,668,452.36
  5. Step 5: Solve for x
    x = 17,406,668,452.36/148,606.56
  6. Step 6: Final answer
    x = 117,132.57

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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.