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Finding the Fourth Proportional to 223,388.28, 335,129.40 and 65,603.52

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Solution

The fourth proportional to 223,388.28, 335,129.40 and 65,603.52 is: 98,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,388.28 : 335,129.40 = 65,603.52 : x
  2. Step 2: Convert to fraction form
    223,388.28/335,129.40 = 65,603.52/x
  3. Step 3: Cross multiply
    223,388.28x = 335,129.40 × 65,603.52
  4. Step 4: Simplify right side
    223,388.28x = 21,985,668,295.49
  5. Step 5: Solve for x
    x = 21,985,668,295.49/223,388.28
  6. Step 6: Final answer
    x = 98,419.08

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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.