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Finding the Fourth Proportional to 223,387.48, 335,064.80 and 65,628.28

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Solution

The fourth proportional to 223,387.48, 335,064.80 and 65,628.28 is: 98,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,387.48 : 335,064.80 = 65,628.28 : x
  2. Step 2: Convert to fraction form
    223,387.48/335,064.80 = 65,628.28/x
  3. Step 3: Cross multiply
    223,387.48x = 335,064.80 × 65,628.28
  4. Step 4: Simplify right side
    223,387.48x = 21,989,726,512.54
  5. Step 5: Solve for x
    x = 21,989,726,512.54/223,387.48
  6. Step 6: Final answer
    x = 98,437.60

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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.