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Finding the Fourth Proportional to 169,011.95, 253,435.91 and 84,735.90

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Solution

The fourth proportional to 169,011.95, 253,435.91 and 84,735.90 is: 127,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,011.95 : 253,435.91 = 84,735.90 : x
  2. Step 2: Convert to fraction form
    169,011.95/253,435.91 = 84,735.90/x
  3. Step 3: Cross multiply
    169,011.95x = 253,435.91 × 84,735.90
  4. Step 4: Simplify right side
    169,011.95x = 21,475,119,502.49
  5. Step 5: Solve for x
    x = 21,475,119,502.49/169,011.95
  6. Step 6: Final answer
    x = 127,062.73

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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.