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Finding the Fourth Proportional to 112,296.54, 154,962.57 and 61,299.12

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Solution

The fourth proportional to 112,296.54, 154,962.57 and 61,299.12 is: 84,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,296.54 : 154,962.57 = 61,299.12 : x
  2. Step 2: Convert to fraction form
    112,296.54/154,962.57 = 61,299.12/x
  3. Step 3: Cross multiply
    112,296.54x = 154,962.57 × 61,299.12
  4. Step 4: Simplify right side
    112,296.54x = 9,499,069,173.94
  5. Step 5: Solve for x
    x = 9,499,069,173.94/112,296.54
  6. Step 6: Final answer
    x = 84,589.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.