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Finding the Fourth Proportional to 235,086.48, 352,473.12 and 85,307.34

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Solution

The fourth proportional to 235,086.48, 352,473.12 and 85,307.34 is: 127,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,086.48 : 352,473.12 = 85,307.34 : x
  2. Step 2: Convert to fraction form
    235,086.48/352,473.12 = 85,307.34/x
  3. Step 3: Cross multiply
    235,086.48x = 352,473.12 × 85,307.34
  4. Step 4: Simplify right side
    235,086.48x = 30,068,544,288.70
  5. Step 5: Solve for x
    x = 30,068,544,288.70/235,086.48
  6. Step 6: Final answer
    x = 127,904.18

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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.