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Finding the Fourth Proportional to 375,778.54, 563,659.60 and 91,470.59

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Solution

The fourth proportional to 375,778.54, 563,659.60 and 91,470.59 is: 137,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,778.54 : 563,659.60 = 91,470.59 : x
  2. Step 2: Convert to fraction form
    375,778.54/563,659.60 = 91,470.59/x
  3. Step 3: Cross multiply
    375,778.54x = 563,659.60 × 91,470.59
  4. Step 4: Simplify right side
    375,778.54x = 51,558,275,713.81
  5. Step 5: Solve for x
    x = 51,558,275,713.81/375,778.54
  6. Step 6: Final answer
    x = 137,203.89

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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.