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Finding the Fourth Proportional to 243,081.39, 364,622.08 and 65,588.40

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Solution

The fourth proportional to 243,081.39, 364,622.08 and 65,588.40 is: 98,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,081.39 : 364,622.08 = 65,588.40 : x
  2. Step 2: Convert to fraction form
    243,081.39/364,622.08 = 65,588.40/x
  3. Step 3: Cross multiply
    243,081.39x = 364,622.08 × 65,588.40
  4. Step 4: Simplify right side
    243,081.39x = 23,914,977,008.76
  5. Step 5: Solve for x
    x = 23,914,977,008.76/243,081.39
  6. Step 6: Final answer
    x = 98,382.59

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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.