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Finding the Fourth Proportional to 172,412.16, 237,909.44 and 96,959.04

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Solution

The fourth proportional to 172,412.16, 237,909.44 and 96,959.04 is: 133,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,412.16 : 237,909.44 = 96,959.04 : x
  2. Step 2: Convert to fraction form
    172,412.16/237,909.44 = 96,959.04/x
  3. Step 3: Cross multiply
    172,412.16x = 237,909.44 × 96,959.04
  4. Step 4: Simplify right side
    172,412.16x = 23,067,470,909.34
  5. Step 5: Solve for x
    x = 23,067,470,909.34/172,412.16
  6. Step 6: Final answer
    x = 133,792.60

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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.