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Finding the Fourth Proportional to 172,109.16, 237,484.80 and 96,643.08

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Solution

The fourth proportional to 172,109.16, 237,484.80 and 96,643.08 is: 133,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,109.16 : 237,484.80 = 96,643.08 : x
  2. Step 2: Convert to fraction form
    172,109.16/237,484.80 = 96,643.08/x
  3. Step 3: Cross multiply
    172,109.16x = 237,484.80 × 96,643.08
  4. Step 4: Simplify right side
    172,109.16x = 22,951,262,525.18
  5. Step 5: Solve for x
    x = 22,951,262,525.18/172,109.16
  6. Step 6: Final answer
    x = 133,352.94

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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.