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Finding the Fourth Proportional to 223,973.76, 335,972.88 and 90,834.24

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Solution

The fourth proportional to 223,973.76, 335,972.88 and 90,834.24 is: 136,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,973.76 : 335,972.88 = 90,834.24 : x
  2. Step 2: Convert to fraction form
    223,973.76/335,972.88 = 90,834.24/x
  3. Step 3: Cross multiply
    223,973.76x = 335,972.88 × 90,834.24
  4. Step 4: Simplify right side
    223,973.76x = 30,517,841,215.41
  5. Step 5: Solve for x
    x = 30,517,841,215.41/223,973.76
  6. Step 6: Final answer
    x = 136,256.32

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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.