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Finding the Fourth Proportional to 112,618.40, 168,927.60 and 50,410.40

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Solution

The fourth proportional to 112,618.40, 168,927.60 and 50,410.40 is: 75,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,618.40 : 168,927.60 = 50,410.40 : x
  2. Step 2: Convert to fraction form
    112,618.40/168,927.60 = 50,410.40/x
  3. Step 3: Cross multiply
    112,618.40x = 168,927.60 × 50,410.40
  4. Step 4: Simplify right side
    112,618.40x = 8,515,707,887.04
  5. Step 5: Solve for x
    x = 8,515,707,887.04/112,618.40
  6. Step 6: Final answer
    x = 75,615.60

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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.