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Finding the Fourth Proportional to 172,070.92, 237,416.34 and 100,410.04

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Solution

The fourth proportional to 172,070.92, 237,416.34 and 100,410.04 is: 138,541.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,070.92 : 237,416.34 = 100,410.04 : x
  2. Step 2: Convert to fraction form
    172,070.92/237,416.34 = 100,410.04/x
  3. Step 3: Cross multiply
    172,070.92x = 237,416.34 × 100,410.04
  4. Step 4: Simplify right side
    172,070.92x = 23,838,984,196.05
  5. Step 5: Solve for x
    x = 23,838,984,196.05/172,070.92
  6. Step 6: Final answer
    x = 138,541.62

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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.