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Finding the Fourth Proportional to 95,628, 131,966.64 and 55,884

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Solution

The fourth proportional to 95,628, 131,966.64 and 55,884 is: 77,119.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,628 : 131,966.64 = 55,884 : x
  2. Step 2: Convert to fraction form
    95,628/131,966.64 = 55,884/x
  3. Step 3: Cross multiply
    95,628x = 131,966.64 × 55,884
  4. Step 4: Simplify right side
    95,628x = 7,374,823,709.76
  5. Step 5: Solve for x
    x = 7,374,823,709.76/95,628
  6. Step 6: Final answer
    x = 77,119.92

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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.