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Finding the Fourth Proportional to 93,115.20, 128,498.95 and 50,674.03

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Solution

The fourth proportional to 93,115.20, 128,498.95 and 50,674.03 is: 69,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,115.20 : 128,498.95 = 50,674.03 : x
  2. Step 2: Convert to fraction form
    93,115.20/128,498.95 = 50,674.03/x
  3. Step 3: Cross multiply
    93,115.20x = 128,498.95 × 50,674.03
  4. Step 4: Simplify right side
    93,115.20x = 6,511,559,647.27
  5. Step 5: Solve for x
    x = 6,511,559,647.27/93,115.20
  6. Step 6: Final answer
    x = 69,930.15

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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.