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Finding the Fourth Proportional to 93,382.66, 128,989.61 and 75,544.94

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Solution

The fourth proportional to 93,382.66, 128,989.61 and 75,544.94 is: 104,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,382.66 : 128,989.61 = 75,544.94 : x
  2. Step 2: Convert to fraction form
    93,382.66/128,989.61 = 75,544.94/x
  3. Step 3: Cross multiply
    93,382.66x = 128,989.61 × 75,544.94
  4. Step 4: Simplify right side
    93,382.66x = 9,744,511,325.40
  5. Step 5: Solve for x
    x = 9,744,511,325.40/93,382.66
  6. Step 6: Final answer
    x = 104,350.33

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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.