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Finding the Fourth Proportional to 93,178.44, 128,582.24 and 52,891.47

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Solution

The fourth proportional to 93,178.44, 128,582.24 and 52,891.47 is: 72,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,178.44 : 128,582.24 = 52,891.47 : x
  2. Step 2: Convert to fraction form
    93,178.44/128,582.24 = 52,891.47/x
  3. Step 3: Cross multiply
    93,178.44x = 128,582.24 × 52,891.47
  4. Step 4: Simplify right side
    93,178.44x = 6,800,903,425.04
  5. Step 5: Solve for x
    x = 6,800,903,425.04/93,178.44
  6. Step 6: Final answer
    x = 72,987.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.