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Finding the Fourth Proportional to 242,430.98, 363,667.52 and 73,989.25

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Solution

The fourth proportional to 242,430.98, 363,667.52 and 73,989.25 is: 110,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,430.98 : 363,667.52 = 73,989.25 : x
  2. Step 2: Convert to fraction form
    242,430.98/363,667.52 = 73,989.25/x
  3. Step 3: Cross multiply
    242,430.98x = 363,667.52 × 73,989.25
  4. Step 4: Simplify right side
    242,430.98x = 26,907,486,329.96
  5. Step 5: Solve for x
    x = 26,907,486,329.96/242,430.98
  6. Step 6: Final answer
    x = 110,990.30

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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.