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Finding the Fourth Proportional to 237,842.53, 328,237.79 and 157,128.59

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Solution

The fourth proportional to 237,842.53, 328,237.79 and 157,128.59 is: 216,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,842.53 : 328,237.79 = 157,128.59 : x
  2. Step 2: Convert to fraction form
    237,842.53/328,237.79 = 157,128.59/x
  3. Step 3: Cross multiply
    237,842.53x = 328,237.79 × 157,128.59
  4. Step 4: Simplify right side
    237,842.53x = 51,575,541,162.37
  5. Step 5: Solve for x
    x = 51,575,541,162.37/237,842.53
  6. Step 6: Final answer
    x = 216,847.43

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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.