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Finding the Fourth Proportional to 136,807.88, 204,833.92 and 70,104.36

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Solution

The fourth proportional to 136,807.88, 204,833.92 and 70,104.36 is: 104,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,807.88 : 204,833.92 = 70,104.36 : x
  2. Step 2: Convert to fraction form
    136,807.88/204,833.92 = 70,104.36/x
  3. Step 3: Cross multiply
    136,807.88x = 204,833.92 × 70,104.36
  4. Step 4: Simplify right side
    136,807.88x = 14,359,750,867.89
  5. Step 5: Solve for x
    x = 14,359,750,867.89/136,807.88
  6. Step 6: Final answer
    x = 104,962.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.