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Finding the Fourth Proportional to 253,261.32, 349,569.72 and 157,711.56

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Solution

The fourth proportional to 253,261.32, 349,569.72 and 157,711.56 is: 217,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,261.32 : 349,569.72 = 157,711.56 : x
  2. Step 2: Convert to fraction form
    253,261.32/349,569.72 = 157,711.56/x
  3. Step 3: Cross multiply
    253,261.32x = 349,569.72 × 157,711.56
  4. Step 4: Simplify right side
    253,261.32x = 55,131,185,869.96
  5. Step 5: Solve for x
    x = 55,131,185,869.96/253,261.32
  6. Step 6: Final answer
    x = 217,684.98

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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.