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Finding the Fourth Proportional to 93,687.98, 129,286.19 and 53,414.71

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Solution

The fourth proportional to 93,687.98, 129,286.19 and 53,414.71 is: 73,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,687.98 : 129,286.19 = 53,414.71 : x
  2. Step 2: Convert to fraction form
    93,687.98/129,286.19 = 53,414.71/x
  3. Step 3: Cross multiply
    93,687.98x = 129,286.19 × 53,414.71
  4. Step 4: Simplify right side
    93,687.98x = 6,905,784,345.85
  5. Step 5: Solve for x
    x = 6,905,784,345.85/93,687.98
  6. Step 6: Final answer
    x = 73,710.46

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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.