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Finding the Fourth Proportional to 93,469.55, 128,981.97 and 51,027.98

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Solution

The fourth proportional to 93,469.55, 128,981.97 and 51,027.98 is: 70,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,469.55 : 128,981.97 = 51,027.98 : x
  2. Step 2: Convert to fraction form
    93,469.55/128,981.97 = 51,027.98/x
  3. Step 3: Cross multiply
    93,469.55x = 128,981.97 × 51,027.98
  4. Step 4: Simplify right side
    93,469.55x = 6,581,688,740.61
  5. Step 5: Solve for x
    x = 6,581,688,740.61/93,469.55
  6. Step 6: Final answer
    x = 70,415.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.