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Finding the Fourth Proportional to 114,296.40, 171,444.60 and 74,638.80

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Solution

The fourth proportional to 114,296.40, 171,444.60 and 74,638.80 is: 111,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,296.40 : 171,444.60 = 74,638.80 : x
  2. Step 2: Convert to fraction form
    114,296.40/171,444.60 = 74,638.80/x
  3. Step 3: Cross multiply
    114,296.40x = 171,444.60 × 74,638.80
  4. Step 4: Simplify right side
    114,296.40x = 12,796,419,210.48
  5. Step 5: Solve for x
    x = 12,796,419,210.48/114,296.40
  6. Step 6: Final answer
    x = 111,958.20

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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.