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Finding the Fourth Proportional to 93,090.30, 139,624.65 and 26,540.70

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Solution

The fourth proportional to 93,090.30, 139,624.65 and 26,540.70 is: 39,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,090.30 : 139,624.65 = 26,540.70 : x
  2. Step 2: Convert to fraction form
    93,090.30/139,624.65 = 26,540.70/x
  3. Step 3: Cross multiply
    93,090.30x = 139,624.65 × 26,540.70
  4. Step 4: Simplify right side
    93,090.30x = 3,705,735,948.26
  5. Step 5: Solve for x
    x = 3,705,735,948.26/93,090.30
  6. Step 6: Final answer
    x = 39,807.97

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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.