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Finding the Fourth Proportional to 103,522.94, 155,221.68 and 67,526.28

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Solution

The fourth proportional to 103,522.94, 155,221.68 and 67,526.28 is: 101,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,522.94 : 155,221.68 = 67,526.28 : x
  2. Step 2: Convert to fraction form
    103,522.94/155,221.68 = 67,526.28/x
  3. Step 3: Cross multiply
    103,522.94x = 155,221.68 × 67,526.28
  4. Step 4: Simplify right side
    103,522.94x = 10,481,542,878.97
  5. Step 5: Solve for x
    x = 10,481,542,878.97/103,522.94
  6. Step 6: Final answer
    x = 101,248.51

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1.5x scale

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.