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Finding the Fourth Proportional to 302,009.66, 453,017.21 and 91,647.59

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Solution

The fourth proportional to 302,009.66, 453,017.21 and 91,647.59 is: 137,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,009.66 : 453,017.21 = 91,647.59 : x
  2. Step 2: Convert to fraction form
    302,009.66/453,017.21 = 91,647.59/x
  3. Step 3: Cross multiply
    302,009.66x = 453,017.21 × 91,647.59
  4. Step 4: Simplify right side
    302,009.66x = 41,517,932,801.70
  5. Step 5: Solve for x
    x = 41,517,932,801.70/302,009.66
  6. Step 6: Final answer
    x = 137,472.20

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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.