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Finding the Fourth Proportional to 93,758.87, 140,690.93 and 93,046.75

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Solution

The fourth proportional to 93,758.87, 140,690.93 and 93,046.75 is: 139,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,758.87 : 140,690.93 = 93,046.75 : x
  2. Step 2: Convert to fraction form
    93,758.87/140,690.93 = 93,046.75/x
  3. Step 3: Cross multiply
    93,758.87x = 140,690.93 × 93,046.75
  4. Step 4: Simplify right side
    93,758.87x = 13,090,832,974.02
  5. Step 5: Solve for x
    x = 13,090,832,974.02/93,758.87
  6. Step 6: Final answer
    x = 139,622.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.