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Finding the Fourth Proportional to 254,887.70, 351,657.45 and 158,056.79

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Solution

The fourth proportional to 254,887.70, 351,657.45 and 158,056.79 is: 218,064.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,887.70 : 351,657.45 = 158,056.79 : x
  2. Step 2: Convert to fraction form
    254,887.70/351,657.45 = 158,056.79/x
  3. Step 3: Cross multiply
    254,887.70x = 351,657.45 × 158,056.79
  4. Step 4: Simplify right side
    254,887.70x = 55,581,845,968.30
  5. Step 5: Solve for x
    x = 55,581,845,968.30/254,887.70
  6. Step 6: Final answer
    x = 218,064.06

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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.