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Finding the Fourth Proportional to 88,328.40, 132,457.40 and 29,147.60

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Solution

The fourth proportional to 88,328.40, 132,457.40 and 29,147.60 is: 43,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,328.40 : 132,457.40 = 29,147.60 : x
  2. Step 2: Convert to fraction form
    88,328.40/132,457.40 = 29,147.60/x
  3. Step 3: Cross multiply
    88,328.40x = 132,457.40 × 29,147.60
  4. Step 4: Simplify right side
    88,328.40x = 3,860,815,312.24
  5. Step 5: Solve for x
    x = 3,860,815,312.24/88,328.40
  6. Step 6: Final answer
    x = 43,709.78

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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.