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Finding the Fourth Proportional to 98,946.66, 136,546.56 and 53,624.64

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Solution

The fourth proportional to 98,946.66, 136,546.56 and 53,624.64 is: 74,002.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,946.66 : 136,546.56 = 53,624.64 : x
  2. Step 2: Convert to fraction form
    98,946.66/136,546.56 = 53,624.64/x
  3. Step 3: Cross multiply
    98,946.66x = 136,546.56 × 53,624.64
  4. Step 4: Simplify right side
    98,946.66x = 7,322,260,123.24
  5. Step 5: Solve for x
    x = 7,322,260,123.24/98,946.66
  6. Step 6: Final answer
    x = 74,002.09

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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.