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Finding the Fourth Proportional to 60,219.40, 90,329.10 and 29,115.40

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Solution

The fourth proportional to 60,219.40, 90,329.10 and 29,115.40 is: 43,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,219.40 : 90,329.10 = 29,115.40 : x
  2. Step 2: Convert to fraction form
    60,219.40/90,329.10 = 29,115.40/x
  3. Step 3: Cross multiply
    60,219.40x = 90,329.10 × 29,115.40
  4. Step 4: Simplify right side
    60,219.40x = 2,629,967,878.14
  5. Step 5: Solve for x
    x = 2,629,967,878.14/60,219.40
  6. Step 6: Final answer
    x = 43,673.10

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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.