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Finding the Fourth Proportional to 93,177.64, 139,837.26 and 68,282.69

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Solution

The fourth proportional to 93,177.64, 139,837.26 and 68,282.69 is: 102,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,177.64 : 139,837.26 = 68,282.69 : x
  2. Step 2: Convert to fraction form
    93,177.64/139,837.26 = 68,282.69/x
  3. Step 3: Cross multiply
    93,177.64x = 139,837.26 × 68,282.69
  4. Step 4: Simplify right side
    93,177.64x = 9,548,464,275.03
  5. Step 5: Solve for x
    x = 9,548,464,275.03/93,177.64
  6. Step 6: Final answer
    x = 102,475.92

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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.