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Finding the Fourth Proportional to 235,324.80, 324,628.59 and 153,700.86

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Solution

The fourth proportional to 235,324.80, 324,628.59 and 153,700.86 is: 212,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,324.80 : 324,628.59 = 153,700.86 : x
  2. Step 2: Convert to fraction form
    235,324.80/324,628.59 = 153,700.86/x
  3. Step 3: Cross multiply
    235,324.80x = 324,628.59 × 153,700.86
  4. Step 4: Simplify right side
    235,324.80x = 49,895,693,463.59
  5. Step 5: Solve for x
    x = 49,895,693,463.59/235,324.80
  6. Step 6: Final answer
    x = 212,029.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.