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Finding the Fourth Proportional to 253,376.92, 349,636.34 and 171,538.70

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Solution

The fourth proportional to 253,376.92, 349,636.34 and 171,538.70 is: 236,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,376.92 : 349,636.34 = 171,538.70 : x
  2. Step 2: Convert to fraction form
    253,376.92/349,636.34 = 171,538.70/x
  3. Step 3: Cross multiply
    253,376.92x = 349,636.34 × 171,538.70
  4. Step 4: Simplify right side
    253,376.92x = 59,976,162,791.11
  5. Step 5: Solve for x
    x = 59,976,162,791.11/253,376.92
  6. Step 6: Final answer
    x = 236,707.28

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1.5x scale

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.