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Finding the Fourth Proportional to 235,873.20, 353,895.12 and 145,810.56

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Solution

The fourth proportional to 235,873.20, 353,895.12 and 145,810.56 is: 218,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,873.20 : 353,895.12 = 145,810.56 : x
  2. Step 2: Convert to fraction form
    235,873.20/353,895.12 = 145,810.56/x
  3. Step 3: Cross multiply
    235,873.20x = 353,895.12 × 145,810.56
  4. Step 4: Simplify right side
    235,873.20x = 51,601,645,628.47
  5. Step 5: Solve for x
    x = 51,601,645,628.47/235,873.20
  6. Step 6: Final answer
    x = 218,768.58

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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.