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Finding the Fourth Proportional to 160,934.80, 241,402.20 and 67,430.80

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Solution

The fourth proportional to 160,934.80, 241,402.20 and 67,430.80 is: 101,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,934.80 : 241,402.20 = 67,430.80 : x
  2. Step 2: Convert to fraction form
    160,934.80/241,402.20 = 67,430.80/x
  3. Step 3: Cross multiply
    160,934.80x = 241,402.20 × 67,430.80
  4. Step 4: Simplify right side
    160,934.80x = 16,277,943,467.76
  5. Step 5: Solve for x
    x = 16,277,943,467.76/160,934.80
  6. Step 6: Final answer
    x = 101,146.20

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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.