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Finding the Fourth Proportional to 71,658.59, 107,487.73 and 19,068.08

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Solution

The fourth proportional to 71,658.59, 107,487.73 and 19,068.08 is: 28,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,658.59 : 107,487.73 = 19,068.08 : x
  2. Step 2: Convert to fraction form
    71,658.59/107,487.73 = 19,068.08/x
  3. Step 3: Cross multiply
    71,658.59x = 107,487.73 × 19,068.08
  4. Step 4: Simplify right side
    71,658.59x = 2,049,584,634.66
  5. Step 5: Solve for x
    x = 2,049,584,634.66/71,658.59
  6. Step 6: Final answer
    x = 28,602.08

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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.