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Finding the Fourth Proportional to 93,672.15, 140,472.96 and 30,475.74

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Solution

The fourth proportional to 93,672.15, 140,472.96 and 30,475.74 is: 45,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,672.15 : 140,472.96 = 30,475.74 : x
  2. Step 2: Convert to fraction form
    93,672.15/140,472.96 = 30,475.74/x
  3. Step 3: Cross multiply
    93,672.15x = 140,472.96 × 30,475.74
  4. Step 4: Simplify right side
    93,672.15x = 4,281,017,405.99
  5. Step 5: Solve for x
    x = 4,281,017,405.99/93,672.15
  6. Step 6: Final answer
    x = 45,702.14

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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.