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Finding the Fourth Proportional to 117,956.40, 176,936 and 65,697.92

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Solution

The fourth proportional to 117,956.40, 176,936 and 65,697.92 is: 98,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,956.40 : 176,936 = 65,697.92 : x
  2. Step 2: Convert to fraction form
    117,956.40/176,936 = 65,697.92/x
  3. Step 3: Cross multiply
    117,956.40x = 176,936 × 65,697.92
  4. Step 4: Simplify right side
    117,956.40x = 11,624,327,173.12
  5. Step 5: Solve for x
    x = 11,624,327,173.12/117,956.40
  6. Step 6: Final answer
    x = 98,547.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.