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Finding the Fourth Proportional to 93,013.88, 128,358.50 and 50,572.44

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Solution

The fourth proportional to 93,013.88, 128,358.50 and 50,572.44 is: 69,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,013.88 : 128,358.50 = 50,572.44 : x
  2. Step 2: Convert to fraction form
    93,013.88/128,358.50 = 50,572.44/x
  3. Step 3: Cross multiply
    93,013.88x = 128,358.50 × 50,572.44
  4. Step 4: Simplify right side
    93,013.88x = 6,491,402,539.74
  5. Step 5: Solve for x
    x = 6,491,402,539.74/93,013.88
  6. Step 6: Final answer
    x = 69,789.61

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1.5x scale

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.