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Finding the Fourth Proportional to 93,335.94, 139,974.75 and 40,731.30

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Solution

The fourth proportional to 93,335.94, 139,974.75 and 40,731.30 is: 61,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,335.94 : 139,974.75 = 40,731.30 : x
  2. Step 2: Convert to fraction form
    93,335.94/139,974.75 = 40,731.30/x
  3. Step 3: Cross multiply
    93,335.94x = 139,974.75 × 40,731.30
  4. Step 4: Simplify right side
    93,335.94x = 5,701,353,534.68
  5. Step 5: Solve for x
    x = 5,701,353,534.68/93,335.94
  6. Step 6: Final answer
    x = 61,084.22

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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.