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Finding the Fourth Proportional to 93,472.98, 140,108.74 and 45,339.66

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Solution

The fourth proportional to 93,472.98, 140,108.74 and 45,339.66 is: 67,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,472.98 : 140,108.74 = 45,339.66 : x
  2. Step 2: Convert to fraction form
    93,472.98/140,108.74 = 45,339.66/x
  3. Step 3: Cross multiply
    93,472.98x = 140,108.74 × 45,339.66
  4. Step 4: Simplify right side
    93,472.98x = 6,352,482,407.93
  5. Step 5: Solve for x
    x = 6,352,482,407.93/93,472.98
  6. Step 6: Final answer
    x = 67,960.63

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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.