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Finding the Fourth Proportional to 561,726.90, 842,636.72 and 182,639.00

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Solution

The fourth proportional to 561,726.90, 842,636.72 and 182,639.00 is: 273,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,726.90 : 842,636.72 = 182,639.00 : x
  2. Step 2: Convert to fraction form
    561,726.90/842,636.72 = 182,639.00/x
  3. Step 3: Cross multiply
    561,726.90x = 842,636.72 × 182,639.00
  4. Step 4: Simplify right side
    561,726.90x = 153,898,330,467.27
  5. Step 5: Solve for x
    x = 153,898,330,467.27/561,726.90
  6. Step 6: Final answer
    x = 273,973.58

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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.