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Finding the Fourth Proportional to 243,346.23, 364,990.59 and 74,866.23

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Solution

The fourth proportional to 243,346.23, 364,990.59 and 74,866.23 is: 112,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,346.23 : 364,990.59 = 74,866.23 : x
  2. Step 2: Convert to fraction form
    243,346.23/364,990.59 = 74,866.23/x
  3. Step 3: Cross multiply
    243,346.23x = 364,990.59 × 74,866.23
  4. Step 4: Simplify right side
    243,346.23x = 27,325,469,458.78
  5. Step 5: Solve for x
    x = 27,325,469,458.78/243,346.23
  6. Step 6: Final answer
    x = 112,290.50

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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.