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Finding the Fourth Proportional to 111,971.60, 167,957.40 and 97,391.60

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Solution

The fourth proportional to 111,971.60, 167,957.40 and 97,391.60 is: 146,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,971.60 : 167,957.40 = 97,391.60 : x
  2. Step 2: Convert to fraction form
    111,971.60/167,957.40 = 97,391.60/x
  3. Step 3: Cross multiply
    111,971.60x = 167,957.40 × 97,391.60
  4. Step 4: Simplify right side
    111,971.60x = 16,357,639,917.84
  5. Step 5: Solve for x
    x = 16,357,639,917.84/111,971.60
  6. Step 6: Final answer
    x = 146,087.40

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1.5x scale

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.