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Finding the Fourth Proportional to 224,685.12, 336,768.48 and 84,354.24

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Solution

The fourth proportional to 224,685.12, 336,768.48 and 84,354.24 is: 126,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,685.12 : 336,768.48 = 84,354.24 : x
  2. Step 2: Convert to fraction form
    224,685.12/336,768.48 = 84,354.24/x
  3. Step 3: Cross multiply
    224,685.12x = 336,768.48 × 84,354.24
  4. Step 4: Simplify right side
    224,685.12x = 28,407,849,186.36
  5. Step 5: Solve for x
    x = 28,407,849,186.36/224,685.12
  6. Step 6: Final answer
    x = 126,434.05

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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.