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Finding the Fourth Proportional to 136,035.40, 204,053.10 and 91,798.60

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Solution

The fourth proportional to 136,035.40, 204,053.10 and 91,798.60 is: 137,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,035.40 : 204,053.10 = 91,798.60 : x
  2. Step 2: Convert to fraction form
    136,035.40/204,053.10 = 91,798.60/x
  3. Step 3: Cross multiply
    136,035.40x = 204,053.10 × 91,798.60
  4. Step 4: Simplify right side
    136,035.40x = 18,731,788,905.66
  5. Step 5: Solve for x
    x = 18,731,788,905.66/136,035.40
  6. Step 6: Final answer
    x = 137,697.90

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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.