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Finding the Fourth Proportional to 93,228.30, 139,842.45 and 26,672.40

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Solution

The fourth proportional to 93,228.30, 139,842.45 and 26,672.40 is: 40,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,228.30 : 139,842.45 = 26,672.40 : x
  2. Step 2: Convert to fraction form
    93,228.30/139,842.45 = 26,672.40/x
  3. Step 3: Cross multiply
    93,228.30x = 139,842.45 × 26,672.40
  4. Step 4: Simplify right side
    93,228.30x = 3,729,933,763.38
  5. Step 5: Solve for x
    x = 3,729,933,763.38/93,228.30
  6. Step 6: Final answer
    x = 40,008.60

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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.