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Finding the Fourth Proportional to 279,900.01, 386,261.96 and 152,575.57

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Solution

The fourth proportional to 279,900.01, 386,261.96 and 152,575.57 is: 210,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,900.01 : 386,261.96 = 152,575.57 : x
  2. Step 2: Convert to fraction form
    279,900.01/386,261.96 = 152,575.57/x
  3. Step 3: Cross multiply
    279,900.01x = 386,261.96 × 152,575.57
  4. Step 4: Simplify right side
    279,900.01x = 58,934,138,716.32
  5. Step 5: Solve for x
    x = 58,934,138,716.32/279,900.01
  6. Step 6: Final answer
    x = 210,554.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.