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Finding the Fourth Proportional to 172,680.52, 238,316.18 and 101,056.28

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Solution

The fourth proportional to 172,680.52, 238,316.18 and 101,056.28 is: 139,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,680.52 : 238,316.18 = 101,056.28 : x
  2. Step 2: Convert to fraction form
    172,680.52/238,316.18 = 101,056.28/x
  3. Step 3: Cross multiply
    172,680.52x = 238,316.18 × 101,056.28
  4. Step 4: Simplify right side
    172,680.52x = 24,083,346,614.61
  5. Step 5: Solve for x
    x = 24,083,346,614.61/172,680.52
  6. Step 6: Final answer
    x = 139,467.65

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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.