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Finding the Fourth Proportional to 71,260, 106,875.38 and 41,655.30

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Solution

The fourth proportional to 71,260, 106,875.38 and 41,655.30 is: 62,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,260 : 106,875.38 = 41,655.30 : x
  2. Step 2: Convert to fraction form
    71,260/106,875.38 = 41,655.30/x
  3. Step 3: Cross multiply
    71,260x = 106,875.38 × 41,655.30
  4. Step 4: Simplify right side
    71,260x = 4,451,926,016.51
  5. Step 5: Solve for x
    x = 4,451,926,016.51/71,260
  6. Step 6: Final answer
    x = 62,474.40

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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.