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Finding the Fourth Proportional to 297,577.90, 446,370.48 and 87,220.09

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Solution

The fourth proportional to 297,577.90, 446,370.48 and 87,220.09 is: 130,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,577.90 : 446,370.48 = 87,220.09 : x
  2. Step 2: Convert to fraction form
    297,577.90/446,370.48 = 87,220.09/x
  3. Step 3: Cross multiply
    297,577.90x = 446,370.48 × 87,220.09
  4. Step 4: Simplify right side
    297,577.90x = 38,932,473,438.94
  5. Step 5: Solve for x
    x = 38,932,473,438.94/297,577.90
  6. Step 6: Final answer
    x = 130,831.20

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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.