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Finding the Fourth Proportional to 134,119.55, 185,008.02 and 83,731.07

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Solution

The fourth proportional to 134,119.55, 185,008.02 and 83,731.07 is: 115,500.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,119.55 : 185,008.02 = 83,731.07 : x
  2. Step 2: Convert to fraction form
    134,119.55/185,008.02 = 83,731.07/x
  3. Step 3: Cross multiply
    134,119.55x = 185,008.02 × 83,731.07
  4. Step 4: Simplify right side
    134,119.55x = 15,490,919,473.18
  5. Step 5: Solve for x
    x = 15,490,919,473.18/134,119.55
  6. Step 6: Final answer
    x = 115,500.83

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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.