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Finding the Fourth Proportional to 169,053.60, 253,437.68 and 106,586.40

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Solution

The fourth proportional to 169,053.60, 253,437.68 and 106,586.40 is: 159,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,053.60 : 253,437.68 = 106,586.40 : x
  2. Step 2: Convert to fraction form
    169,053.60/253,437.68 = 106,586.40/x
  3. Step 3: Cross multiply
    169,053.60x = 253,437.68 × 106,586.40
  4. Step 4: Simplify right side
    169,053.60x = 27,013,009,935.55
  5. Step 5: Solve for x
    x = 27,013,009,935.55/169,053.60
  6. Step 6: Final answer
    x = 159,789.62

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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.