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Finding the Fourth Proportional to 169,709.68, 253,323.86 and 157,374.64

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Solution

The fourth proportional to 169,709.68, 253,323.86 and 157,374.64 is: 234,911.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,709.68 : 253,323.86 = 157,374.64 : x
  2. Step 2: Convert to fraction form
    169,709.68/253,323.86 = 157,374.64/x
  3. Step 3: Cross multiply
    169,709.68x = 253,323.86 × 157,374.64
  4. Step 4: Simplify right side
    169,709.68x = 39,866,751,270.91
  5. Step 5: Solve for x
    x = 39,866,751,270.91/169,709.68
  6. Step 6: Final answer
    x = 234,911.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.