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Finding the Fourth Proportional to 159,686.94, 239,530.45 and 64,968.67

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Solution

The fourth proportional to 159,686.94, 239,530.45 and 64,968.67 is: 97,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,686.94 : 239,530.45 = 64,968.67 : x
  2. Step 2: Convert to fraction form
    159,686.94/239,530.45 = 64,968.67/x
  3. Step 3: Cross multiply
    159,686.94x = 239,530.45 × 64,968.67
  4. Step 4: Simplify right side
    159,686.94x = 15,561,974,761.00
  5. Step 5: Solve for x
    x = 15,561,974,761.00/159,686.94
  6. Step 6: Final answer
    x = 97,453.02

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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.