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Finding the Fourth Proportional to 111,569.60, 167,354.40 and 67,332.80

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Solution

The fourth proportional to 111,569.60, 167,354.40 and 67,332.80 is: 100,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,569.60 : 167,354.40 = 67,332.80 : x
  2. Step 2: Convert to fraction form
    111,569.60/167,354.40 = 67,332.80/x
  3. Step 3: Cross multiply
    111,569.60x = 167,354.40 × 67,332.80
  4. Step 4: Simplify right side
    111,569.60x = 11,268,440,344.32
  5. Step 5: Solve for x
    x = 11,268,440,344.32/111,569.60
  6. Step 6: Final answer
    x = 100,999.20

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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.