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Finding the Fourth Proportional to 136,304.51, 188,102.01 and 75,057.88

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Solution

The fourth proportional to 136,304.51, 188,102.01 and 75,057.88 is: 103,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,304.51 : 188,102.01 = 75,057.88 : x
  2. Step 2: Convert to fraction form
    136,304.51/188,102.01 = 75,057.88/x
  3. Step 3: Cross multiply
    136,304.51x = 188,102.01 × 75,057.88
  4. Step 4: Simplify right side
    136,304.51x = 14,118,538,258.24
  5. Step 5: Solve for x
    x = 14,118,538,258.24/136,304.51
  6. Step 6: Final answer
    x = 103,580.86

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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.