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Finding the Fourth Proportional to 223,689.32, 335,430.30 and 83,410.28

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Solution

The fourth proportional to 223,689.32, 335,430.30 and 83,410.28 is: 125,076.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,689.32 : 335,430.30 = 83,410.28 : x
  2. Step 2: Convert to fraction form
    223,689.32/335,430.30 = 83,410.28/x
  3. Step 3: Cross multiply
    223,689.32x = 335,430.30 × 83,410.28
  4. Step 4: Simplify right side
    223,689.32x = 27,978,335,243.48
  5. Step 5: Solve for x
    x = 27,978,335,243.48/223,689.32
  6. Step 6: Final answer
    x = 125,076.76

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1.5x scale

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.