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Finding the Fourth Proportional to 505,841.16, 758,744.16 and 126,765.24

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Solution

The fourth proportional to 505,841.16, 758,744.16 and 126,765.24 is: 190,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,841.16 : 758,744.16 = 126,765.24 : x
  2. Step 2: Convert to fraction form
    505,841.16/758,744.16 = 126,765.24/x
  3. Step 3: Cross multiply
    505,841.16x = 758,744.16 × 126,765.24
  4. Step 4: Simplify right side
    505,841.16x = 96,182,385,541.00
  5. Step 5: Solve for x
    x = 96,182,385,541.00/505,841.16
  6. Step 6: Final answer
    x = 190,143.45

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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.