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Finding the Fourth Proportional to 341,804.40, 512,755.20 and 105,166.32

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Solution

The fourth proportional to 341,804.40, 512,755.20 and 105,166.32 is: 157,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,804.40 : 512,755.20 = 105,166.32 : x
  2. Step 2: Convert to fraction form
    341,804.40/512,755.20 = 105,166.32/x
  3. Step 3: Cross multiply
    341,804.40x = 512,755.20 × 105,166.32
  4. Step 4: Simplify right side
    341,804.40x = 53,924,577,444.86
  5. Step 5: Solve for x
    x = 53,924,577,444.86/341,804.40
  6. Step 6: Final answer
    x = 157,764.43

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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.