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Finding the Fourth Proportional to 235,878.78, 325,509.49 and 133,903.35

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Solution

The fourth proportional to 235,878.78, 325,509.49 and 133,903.35 is: 184,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,878.78 : 325,509.49 = 133,903.35 : x
  2. Step 2: Convert to fraction form
    235,878.78/325,509.49 = 133,903.35/x
  3. Step 3: Cross multiply
    235,878.78x = 325,509.49 × 133,903.35
  4. Step 4: Simplify right side
    235,878.78x = 43,586,811,167.79
  5. Step 5: Solve for x
    x = 43,586,811,167.79/235,878.78
  6. Step 6: Final answer
    x = 184,784.79

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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.