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Finding the Fourth Proportional to 243,156.60, 364,753.35 and 65,661.08

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Solution

The fourth proportional to 243,156.60, 364,753.35 and 65,661.08 is: 98,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,156.60 : 364,753.35 = 65,661.08 : x
  2. Step 2: Convert to fraction form
    243,156.60/364,753.35 = 65,661.08/x
  3. Step 3: Cross multiply
    243,156.60x = 364,753.35 × 65,661.08
  4. Step 4: Simplify right side
    243,156.60x = 23,950,097,070.85
  5. Step 5: Solve for x
    x = 23,950,097,070.85/243,156.60
  6. Step 6: Final answer
    x = 98,496.59

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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.