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Finding the Fourth Proportional to 98,192.76, 135,511.32 and 57,930.12

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Solution

The fourth proportional to 98,192.76, 135,511.32 and 57,930.12 is: 79,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,192.76 : 135,511.32 = 57,930.12 : x
  2. Step 2: Convert to fraction form
    98,192.76/135,511.32 = 57,930.12/x
  3. Step 3: Cross multiply
    98,192.76x = 135,511.32 × 57,930.12
  4. Step 4: Simplify right side
    98,192.76x = 7,850,187,028.96
  5. Step 5: Solve for x
    x = 7,850,187,028.96/98,192.76
  6. Step 6: Final answer
    x = 79,946.70

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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.