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Finding the Fourth Proportional to 93,171.30, 139,713.93 and 29,979.66

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Solution

The fourth proportional to 93,171.30, 139,713.93 and 29,979.66 is: 44,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,171.30 : 139,713.93 = 29,979.66 : x
  2. Step 2: Convert to fraction form
    93,171.30/139,713.93 = 29,979.66/x
  3. Step 3: Cross multiply
    93,171.30x = 139,713.93 × 29,979.66
  4. Step 4: Simplify right side
    93,171.30x = 4,188,576,118.66
  5. Step 5: Solve for x
    x = 4,188,576,118.66/93,171.30
  6. Step 6: Final answer
    x = 44,955.65

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1.5x scale

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.