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Finding the Fourth Proportional to 102,715.60, 154,073.40 and 93,530.20

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Solution

The fourth proportional to 102,715.60, 154,073.40 and 93,530.20 is: 140,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,715.60 : 154,073.40 = 93,530.20 : x
  2. Step 2: Convert to fraction form
    102,715.60/154,073.40 = 93,530.20/x
  3. Step 3: Cross multiply
    102,715.60x = 154,073.40 × 93,530.20
  4. Step 4: Simplify right side
    102,715.60x = 14,410,515,916.68
  5. Step 5: Solve for x
    x = 14,410,515,916.68/102,715.60
  6. Step 6: Final answer
    x = 140,295.30

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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.