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Finding the Fourth Proportional to 88,328, 132,459.60 and 29,146.16

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Solution

The fourth proportional to 88,328, 132,459.60 and 29,146.16 is: 43,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,328 : 132,459.60 = 29,146.16 : x
  2. Step 2: Convert to fraction form
    88,328/132,459.60 = 29,146.16/x
  3. Step 3: Cross multiply
    88,328x = 132,459.60 × 29,146.16
  4. Step 4: Simplify right side
    88,328x = 3,860,688,695.14
  5. Step 5: Solve for x
    x = 3,860,688,695.14/88,328
  6. Step 6: Final answer
    x = 43,708.55

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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.