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Finding the Fourth Proportional to 134,715, 202,101.66 and 51,609

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Solution

The fourth proportional to 134,715, 202,101.66 and 51,609 is: 77,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,715 : 202,101.66 = 51,609 : x
  2. Step 2: Convert to fraction form
    134,715/202,101.66 = 51,609/x
  3. Step 3: Cross multiply
    134,715x = 202,101.66 × 51,609
  4. Step 4: Simplify right side
    134,715x = 10,430,264,570.94
  5. Step 5: Solve for x
    x = 10,430,264,570.94/134,715
  6. Step 6: Final answer
    x = 77,424.67

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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.