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Finding the Fourth Proportional to 242,646.60, 363,905.10 and 84,858.60

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Solution

The fourth proportional to 242,646.60, 363,905.10 and 84,858.60 is: 127,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,646.60 : 363,905.10 = 84,858.60 : x
  2. Step 2: Convert to fraction form
    242,646.60/363,905.10 = 84,858.60/x
  3. Step 3: Cross multiply
    242,646.60x = 363,905.10 × 84,858.60
  4. Step 4: Simplify right side
    242,646.60x = 30,880,477,318.86
  5. Step 5: Solve for x
    x = 30,880,477,318.86/242,646.60
  6. Step 6: Final answer
    x = 127,265.24

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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.