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Finding the Fourth Proportional to 172,118.76, 237,485.06 and 104,134.04

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Solution

The fourth proportional to 172,118.76, 237,485.06 and 104,134.04 is: 143,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,118.76 : 237,485.06 = 104,134.04 : x
  2. Step 2: Convert to fraction form
    172,118.76/237,485.06 = 104,134.04/x
  3. Step 3: Cross multiply
    172,118.76x = 237,485.06 × 104,134.04
  4. Step 4: Simplify right side
    172,118.76x = 24,730,278,896.17
  5. Step 5: Solve for x
    x = 24,730,278,896.17/172,118.76
  6. Step 6: Final answer
    x = 143,681.49

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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.