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Finding the Fourth Proportional to 357,979.96, 536,969.75 and 105,262.55

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Solution

The fourth proportional to 357,979.96, 536,969.75 and 105,262.55 is: 157,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,979.96 : 536,969.75 = 105,262.55 : x
  2. Step 2: Convert to fraction form
    357,979.96/536,969.75 = 105,262.55/x
  3. Step 3: Cross multiply
    357,979.96x = 536,969.75 × 105,262.55
  4. Step 4: Simplify right side
    357,979.96x = 56,522,805,157.86
  5. Step 5: Solve for x
    x = 56,522,805,157.86/357,979.96
  6. Step 6: Final answer
    x = 157,893.77

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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.