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Finding the Fourth Proportional to 354,346.21, 531,521.31 and 88,106.75

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Solution

The fourth proportional to 354,346.21, 531,521.31 and 88,106.75 is: 132,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,346.21 : 531,521.31 = 88,106.75 : x
  2. Step 2: Convert to fraction form
    354,346.21/531,521.31 = 88,106.75/x
  3. Step 3: Cross multiply
    354,346.21x = 531,521.31 × 88,106.75
  4. Step 4: Simplify right side
    354,346.21x = 46,830,614,845.84
  5. Step 5: Solve for x
    x = 46,830,614,845.84/354,346.21
  6. Step 6: Final answer
    x = 132,160.62

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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.