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Finding the Fourth Proportional to 556,755.42, 835,186.86 and 157,409.22

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Solution

The fourth proportional to 556,755.42, 835,186.86 and 157,409.22 is: 236,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,755.42 : 835,186.86 = 157,409.22 : x
  2. Step 2: Convert to fraction form
    556,755.42/835,186.86 = 157,409.22/x
  3. Step 3: Cross multiply
    556,755.42x = 835,186.86 × 157,409.22
  4. Step 4: Simplify right side
    556,755.42x = 131,466,112,186.85
  5. Step 5: Solve for x
    x = 131,466,112,186.85/556,755.42
  6. Step 6: Final answer
    x = 236,129.02

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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.