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Finding the Fourth Proportional to 186,910.55, 257,927.55 and 106,330.49

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Solution

The fourth proportional to 186,910.55, 257,927.55 and 106,330.49 is: 146,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,910.55 : 257,927.55 = 106,330.49 : x
  2. Step 2: Convert to fraction form
    186,910.55/257,927.55 = 106,330.49/x
  3. Step 3: Cross multiply
    186,910.55x = 257,927.55 × 106,330.49
  4. Step 4: Simplify right side
    186,910.55x = 27,425,562,776.00
  5. Step 5: Solve for x
    x = 27,425,562,776.00/186,910.55
  6. Step 6: Final answer
    x = 146,730.95

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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.