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Finding the Fourth Proportional to 93,418.92, 140,283.90 and 92,693.16

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Solution

The fourth proportional to 93,418.92, 140,283.90 and 92,693.16 is: 139,194.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,418.92 : 140,283.90 = 92,693.16 : x
  2. Step 2: Convert to fraction form
    93,418.92/140,283.90 = 92,693.16/x
  3. Step 3: Cross multiply
    93,418.92x = 140,283.90 × 92,693.16
  4. Step 4: Simplify right side
    93,418.92x = 13,003,357,988.12
  5. Step 5: Solve for x
    x = 13,003,357,988.12/93,418.92
  6. Step 6: Final answer
    x = 139,194.05

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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.