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Finding the Fourth Proportional to 417,054.48, 625,646.52 and 136,507.20

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Solution

The fourth proportional to 417,054.48, 625,646.52 and 136,507.20 is: 204,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,054.48 : 625,646.52 = 136,507.20 : x
  2. Step 2: Convert to fraction form
    417,054.48/625,646.52 = 136,507.20/x
  3. Step 3: Cross multiply
    417,054.48x = 625,646.52 × 136,507.20
  4. Step 4: Simplify right side
    417,054.48x = 85,405,254,634.94
  5. Step 5: Solve for x
    x = 85,405,254,634.94/417,054.48
  6. Step 6: Final answer
    x = 204,782.01

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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.