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Finding the Fourth Proportional to 93,930.59, 129,625.80 and 50,911.45

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Solution

The fourth proportional to 93,930.59, 129,625.80 and 50,911.45 is: 70,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,930.59 : 129,625.80 = 50,911.45 : x
  2. Step 2: Convert to fraction form
    93,930.59/129,625.80 = 50,911.45/x
  3. Step 3: Cross multiply
    93,930.59x = 129,625.80 × 50,911.45
  4. Step 4: Simplify right side
    93,930.59x = 6,599,436,920.43
  5. Step 5: Solve for x
    x = 6,599,436,920.43/93,930.59
  6. Step 6: Final answer
    x = 70,258.65

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1.5x scale

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.