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Finding the Fourth Proportional to 93,274.65, 139,803.57 and 53,321.63

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Solution

The fourth proportional to 93,274.65, 139,803.57 and 53,321.63 is: 79,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,274.65 : 139,803.57 = 53,321.63 : x
  2. Step 2: Convert to fraction form
    93,274.65/139,803.57 = 53,321.63/x
  3. Step 3: Cross multiply
    93,274.65x = 139,803.57 × 53,321.63
  4. Step 4: Simplify right side
    93,274.65x = 7,454,553,533.20
  5. Step 5: Solve for x
    x = 7,454,553,533.20/93,274.65
  6. Step 6: Final answer
    x = 79,920.47

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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.