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Finding the Fourth Proportional to 104,710.90, 144,504.29 and 59,390.72

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Solution

The fourth proportional to 104,710.90, 144,504.29 and 59,390.72 is: 81,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,710.90 : 144,504.29 = 59,390.72 : x
  2. Step 2: Convert to fraction form
    104,710.90/144,504.29 = 59,390.72/x
  3. Step 3: Cross multiply
    104,710.90x = 144,504.29 × 59,390.72
  4. Step 4: Simplify right side
    104,710.90x = 8,582,213,890.50
  5. Step 5: Solve for x
    x = 8,582,213,890.50/104,710.90
  6. Step 6: Final answer
    x = 81,961.04

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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.