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Finding the Fourth Proportional to 111,909.60, 167,864.40 and 97,329.60

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Solution

The fourth proportional to 111,909.60, 167,864.40 and 97,329.60 is: 145,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,909.60 : 167,864.40 = 97,329.60 : x
  2. Step 2: Convert to fraction form
    111,909.60/167,864.40 = 97,329.60/x
  3. Step 3: Cross multiply
    111,909.60x = 167,864.40 × 97,329.60
  4. Step 4: Simplify right side
    111,909.60x = 16,338,174,906.24
  5. Step 5: Solve for x
    x = 16,338,174,906.24/111,909.60
  6. Step 6: Final answer
    x = 145,994.40

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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.