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Finding the Fourth Proportional to 243,020.88, 364,497.72 and 65,538.60

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Solution

The fourth proportional to 243,020.88, 364,497.72 and 65,538.60 is: 98,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,020.88 : 364,497.72 = 65,538.60 : x
  2. Step 2: Convert to fraction form
    243,020.88/364,497.72 = 65,538.60/x
  3. Step 3: Cross multiply
    243,020.88x = 364,497.72 × 65,538.60
  4. Step 4: Simplify right side
    243,020.88x = 23,888,670,271.99
  5. Step 5: Solve for x
    x = 23,888,670,271.99/243,020.88
  6. Step 6: Final answer
    x = 98,298.84

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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.