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Finding the Fourth Proportional to 144,898.40, 217,261.20 and 74,914.40

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Solution

The fourth proportional to 144,898.40, 217,261.20 and 74,914.40 is: 112,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,898.40 : 217,261.20 = 74,914.40 : x
  2. Step 2: Convert to fraction form
    144,898.40/217,261.20 = 74,914.40/x
  3. Step 3: Cross multiply
    144,898.40x = 217,261.20 × 74,914.40
  4. Step 4: Simplify right side
    144,898.40x = 16,275,992,441.28
  5. Step 5: Solve for x
    x = 16,275,992,441.28/144,898.40
  6. Step 6: Final answer
    x = 112,326.93

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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.