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Finding the Fourth Proportional to 172,403.34, 237,910.64 and 94,871.76

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Solution

The fourth proportional to 172,403.34, 237,910.64 and 94,871.76 is: 130,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,403.34 : 237,910.64 = 94,871.76 : x
  2. Step 2: Convert to fraction form
    172,403.34/237,910.64 = 94,871.76/x
  3. Step 3: Cross multiply
    172,403.34x = 237,910.64 × 94,871.76
  4. Step 4: Simplify right side
    172,403.34x = 22,570,999,773.00
  5. Step 5: Solve for x
    x = 22,570,999,773.00/172,403.34
  6. Step 6: Final answer
    x = 130,919.74

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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.