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Finding the Fourth Proportional to 157,978.52, 236,836.56 and 110,457.74

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Solution

The fourth proportional to 157,978.52, 236,836.56 and 110,457.74 is: 165,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,978.52 : 236,836.56 = 110,457.74 : x
  2. Step 2: Convert to fraction form
    157,978.52/236,836.56 = 110,457.74/x
  3. Step 3: Cross multiply
    157,978.52x = 236,836.56 × 110,457.74
  4. Step 4: Simplify right side
    157,978.52x = 26,160,431,166.97
  5. Step 5: Solve for x
    x = 26,160,431,166.97/157,978.52
  6. Step 6: Final answer
    x = 165,594.86

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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.