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Finding the Fourth Proportional to 561,681.20, 842,521.80 and 182,601.20

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Solution

The fourth proportional to 561,681.20, 842,521.80 and 182,601.20 is: 273,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,681.20 : 842,521.80 = 182,601.20 : x
  2. Step 2: Convert to fraction form
    561,681.20/842,521.80 = 182,601.20/x
  3. Step 3: Cross multiply
    561,681.20x = 842,521.80 × 182,601.20
  4. Step 4: Simplify right side
    561,681.20x = 153,845,491,706.16
  5. Step 5: Solve for x
    x = 153,845,491,706.16/561,681.20
  6. Step 6: Final answer
    x = 273,901.80

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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.