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Finding the Fourth Proportional to 172,571.01, 238,164.08 and 100,946.49

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Solution

The fourth proportional to 172,571.01, 238,164.08 and 100,946.49 is: 139,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,571.01 : 238,164.08 = 100,946.49 : x
  2. Step 2: Convert to fraction form
    172,571.01/238,164.08 = 100,946.49/x
  3. Step 3: Cross multiply
    172,571.01x = 238,164.08 × 100,946.49
  4. Step 4: Simplify right side
    172,571.01x = 24,041,827,415.35
  5. Step 5: Solve for x
    x = 24,041,827,415.35/172,571.01
  6. Step 6: Final answer
    x = 139,315.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.