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Finding the Fourth Proportional to 93,443.65, 140,021.95 and 63,418.87

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Solution

The fourth proportional to 93,443.65, 140,021.95 and 63,418.87 is: 95,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,443.65 : 140,021.95 = 63,418.87 : x
  2. Step 2: Convert to fraction form
    93,443.65/140,021.95 = 63,418.87/x
  3. Step 3: Cross multiply
    93,443.65x = 140,021.95 × 63,418.87
  4. Step 4: Simplify right side
    93,443.65x = 8,880,033,844.20
  5. Step 5: Solve for x
    x = 8,880,033,844.20/93,443.65
  6. Step 6: Final answer
    x = 95,030.90

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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.