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Finding the Fourth Proportional to 375,769.80, 563,646.36 and 91,461.56

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Solution

The fourth proportional to 375,769.80, 563,646.36 and 91,461.56 is: 137,190.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,769.80 : 563,646.36 = 91,461.56 : x
  2. Step 2: Convert to fraction form
    375,769.80/563,646.36 = 91,461.56/x
  3. Step 3: Cross multiply
    375,769.80x = 563,646.36 × 91,461.56
  4. Step 4: Simplify right side
    375,769.80x = 51,551,975,373.92
  5. Step 5: Solve for x
    x = 51,551,975,373.92/375,769.80
  6. Step 6: Final answer
    x = 137,190.31

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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.