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Finding the Fourth Proportional to 98,556, 136,007.28 and 53,844

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Solution

The fourth proportional to 98,556, 136,007.28 and 53,844 is: 74,304.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,556 : 136,007.28 = 53,844 : x
  2. Step 2: Convert to fraction form
    98,556/136,007.28 = 53,844/x
  3. Step 3: Cross multiply
    98,556x = 136,007.28 × 53,844
  4. Step 4: Simplify right side
    98,556x = 7,323,175,984.32
  5. Step 5: Solve for x
    x = 7,323,175,984.32/98,556
  6. Step 6: Final answer
    x = 74,304.72

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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.