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Finding the Fourth Proportional to 104,659.65, 144,442.49 and 58,731.93

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Solution

The fourth proportional to 104,659.65, 144,442.49 and 58,731.93 is: 81,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.65 : 144,442.49 = 58,731.93 : x
  2. Step 2: Convert to fraction form
    104,659.65/144,442.49 = 58,731.93/x
  3. Step 3: Cross multiply
    104,659.65x = 144,442.49 × 58,731.93
  4. Step 4: Simplify right side
    104,659.65x = 8,483,385,918.05
  5. Step 5: Solve for x
    x = 8,483,385,918.05/104,659.65
  6. Step 6: Final answer
    x = 81,056.89

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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.