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Finding the Fourth Proportional to 98,896.60, 136,477.73 and 53,574.58

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Solution

The fourth proportional to 98,896.60, 136,477.73 and 53,574.58 is: 73,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,896.60 : 136,477.73 = 53,574.58 : x
  2. Step 2: Convert to fraction form
    98,896.60/136,477.73 = 53,574.58/x
  3. Step 3: Cross multiply
    98,896.60x = 136,477.73 × 53,574.58
  4. Step 4: Simplify right side
    98,896.60x = 7,311,736,796.23
  5. Step 5: Solve for x
    x = 7,311,736,796.23/98,896.60
  6. Step 6: Final answer
    x = 73,933.15

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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.