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Finding the Fourth Proportional to 106,597.20, 159,588.60 and 65,125.20

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Solution

The fourth proportional to 106,597.20, 159,588.60 and 65,125.20 is: 97,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,597.20 : 159,588.60 = 65,125.20 : x
  2. Step 2: Convert to fraction form
    106,597.20/159,588.60 = 65,125.20/x
  3. Step 3: Cross multiply
    106,597.20x = 159,588.60 × 65,125.20
  4. Step 4: Simplify right side
    106,597.20x = 10,393,239,492.72
  5. Step 5: Solve for x
    x = 10,393,239,492.72/106,597.20
  6. Step 6: Final answer
    x = 97,500.12

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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.