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Finding the Fourth Proportional to 93,245.58, 139,670.46 and 75,399.66

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Solution

The fourth proportional to 93,245.58, 139,670.46 and 75,399.66 is: 112,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,245.58 : 139,670.46 = 75,399.66 : x
  2. Step 2: Convert to fraction form
    93,245.58/139,670.46 = 75,399.66/x
  3. Step 3: Cross multiply
    93,245.58x = 139,670.46 × 75,399.66
  4. Step 4: Simplify right side
    93,245.58x = 10,531,105,196.04
  5. Step 5: Solve for x
    x = 10,531,105,196.04/93,245.58
  6. Step 6: Final answer
    x = 112,939.46

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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.