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Finding the Fourth Proportional to 116,611.20, 174,513.60 and 69,897.60

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Solution

The fourth proportional to 116,611.20, 174,513.60 and 69,897.60 is: 104,604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,611.20 : 174,513.60 = 69,897.60 : x
  2. Step 2: Convert to fraction form
    116,611.20/174,513.60 = 69,897.60/x
  3. Step 3: Cross multiply
    116,611.20x = 174,513.60 × 69,897.60
  4. Step 4: Simplify right side
    116,611.20x = 12,198,081,807.36
  5. Step 5: Solve for x
    x = 12,198,081,807.36/116,611.20
  6. Step 6: Final answer
    x = 104,604.72

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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.