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Finding the Fourth Proportional to 423,507.25, 635,242.65 and 107,954.74

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Solution

The fourth proportional to 423,507.25, 635,242.65 and 107,954.74 is: 161,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,507.25 : 635,242.65 = 107,954.74 : x
  2. Step 2: Convert to fraction form
    423,507.25/635,242.65 = 107,954.74/x
  3. Step 3: Cross multiply
    423,507.25x = 635,242.65 × 107,954.74
  4. Step 4: Simplify right side
    423,507.25x = 68,577,455,117.66
  5. Step 5: Solve for x
    x = 68,577,455,117.66/423,507.25
  6. Step 6: Final answer
    x = 161,927.46

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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.