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Finding the Fourth Proportional to 99,007, 136,629.66 and 54,295

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Solution

The fourth proportional to 99,007, 136,629.66 and 54,295 is: 74,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,007 : 136,629.66 = 54,295 : x
  2. Step 2: Convert to fraction form
    99,007/136,629.66 = 54,295/x
  3. Step 3: Cross multiply
    99,007x = 136,629.66 × 54,295
  4. Step 4: Simplify right side
    99,007x = 7,418,307,389.70
  5. Step 5: Solve for x
    x = 7,418,307,389.70/99,007
  6. Step 6: Final answer
    x = 74,927.10

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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.