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Finding the Fourth Proportional to 153,867.60, 230,844.60 and 74,984.40

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Solution

The fourth proportional to 153,867.60, 230,844.60 and 74,984.40 is: 112,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,867.60 : 230,844.60 = 74,984.40 : x
  2. Step 2: Convert to fraction form
    153,867.60/230,844.60 = 74,984.40/x
  3. Step 3: Cross multiply
    153,867.60x = 230,844.60 × 74,984.40
  4. Step 4: Simplify right side
    153,867.60x = 17,309,743,824.24
  5. Step 5: Solve for x
    x = 17,309,743,824.24/153,867.60
  6. Step 6: Final answer
    x = 112,497.65

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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.