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Finding the Fourth Proportional to 445,586.77, 668,419.59 and 125,741.46

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Solution

The fourth proportional to 445,586.77, 668,419.59 and 125,741.46 is: 188,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,586.77 : 668,419.59 = 125,741.46 : x
  2. Step 2: Convert to fraction form
    445,586.77/668,419.59 = 125,741.46/x
  3. Step 3: Cross multiply
    445,586.77x = 668,419.59 × 125,741.46
  4. Step 4: Simplify right side
    445,586.77x = 84,048,058,117.31
  5. Step 5: Solve for x
    x = 84,048,058,117.31/445,586.77
  6. Step 6: Final answer
    x = 188,623.32

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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.