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Finding the Fourth Proportional to 93,968.77, 129,551.45 and 74,651.77

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Solution

The fourth proportional to 93,968.77, 129,551.45 and 74,651.77 is: 102,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,968.77 : 129,551.45 = 74,651.77 : x
  2. Step 2: Convert to fraction form
    93,968.77/129,551.45 = 74,651.77/x
  3. Step 3: Cross multiply
    93,968.77x = 129,551.45 × 74,651.77
  4. Step 4: Simplify right side
    93,968.77x = 9,671,244,977.22
  5. Step 5: Solve for x
    x = 9,671,244,977.22/93,968.77
  6. Step 6: Final answer
    x = 102,919.78

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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.