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Finding the Fourth Proportional to 354,261.50, 531,390.27 and 88,021.90

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Solution

The fourth proportional to 354,261.50, 531,390.27 and 88,021.90 is: 132,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,261.50 : 531,390.27 = 88,021.90 : x
  2. Step 2: Convert to fraction form
    354,261.50/531,390.27 = 88,021.90/x
  3. Step 3: Cross multiply
    354,261.50x = 531,390.27 × 88,021.90
  4. Step 4: Simplify right side
    354,261.50x = 46,773,978,549.96
  5. Step 5: Solve for x
    x = 46,773,978,549.96/354,261.50
  6. Step 6: Final answer
    x = 132,032.35

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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.