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Finding the Fourth Proportional to 68,564.52, 102,740.40 and 47,545.56

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Solution

The fourth proportional to 68,564.52, 102,740.40 and 47,545.56 is: 71,244.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,564.52 : 102,740.40 = 47,545.56 : x
  2. Step 2: Convert to fraction form
    68,564.52/102,740.40 = 47,545.56/x
  3. Step 3: Cross multiply
    68,564.52x = 102,740.40 × 47,545.56
  4. Step 4: Simplify right side
    68,564.52x = 4,884,849,852.62
  5. Step 5: Solve for x
    x = 4,884,849,852.62/68,564.52
  6. Step 6: Final answer
    x = 71,244.57

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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.