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Finding the Fourth Proportional to 169,315.16, 253,978.09 and 62,725.79

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Solution

The fourth proportional to 169,315.16, 253,978.09 and 62,725.79 is: 94,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,315.16 : 253,978.09 = 62,725.79 : x
  2. Step 2: Convert to fraction form
    169,315.16/253,978.09 = 62,725.79/x
  3. Step 3: Cross multiply
    169,315.16x = 253,978.09 × 62,725.79
  4. Step 4: Simplify right side
    169,315.16x = 15,930,976,024.31
  5. Step 5: Solve for x
    x = 15,930,976,024.31/169,315.16
  6. Step 6: Final answer
    x = 94,090.67

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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.