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Finding the Fourth Proportional to 135,898.96, 187,475.16 and 88,167.28

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Solution

The fourth proportional to 135,898.96, 187,475.16 and 88,167.28 is: 121,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,898.96 : 187,475.16 = 88,167.28 : x
  2. Step 2: Convert to fraction form
    135,898.96/187,475.16 = 88,167.28/x
  3. Step 3: Cross multiply
    135,898.96x = 187,475.16 × 88,167.28
  4. Step 4: Simplify right side
    135,898.96x = 16,529,174,924.76
  5. Step 5: Solve for x
    x = 16,529,174,924.76/135,898.96
  6. Step 6: Final answer
    x = 121,628.41

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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.