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Finding the Fourth Proportional to 458,026.93, 687,087.54 and 158,507.03

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Solution

The fourth proportional to 458,026.93, 687,087.54 and 158,507.03 is: 237,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,026.93 : 687,087.54 = 158,507.03 : x
  2. Step 2: Convert to fraction form
    458,026.93/687,087.54 = 158,507.03/x
  3. Step 3: Cross multiply
    458,026.93x = 687,087.54 × 158,507.03
  4. Step 4: Simplify right side
    458,026.93x = 108,908,201,879.97
  5. Step 5: Solve for x
    x = 108,908,201,879.97/458,026.93
  6. Step 6: Final answer
    x = 237,776.85

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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.