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Finding the Fourth Proportional to 111,008.80, 166,513.20 and 64,352.80

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Solution

The fourth proportional to 111,008.80, 166,513.20 and 64,352.80 is: 96,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,008.80 : 166,513.20 = 64,352.80 : x
  2. Step 2: Convert to fraction form
    111,008.80/166,513.20 = 64,352.80/x
  3. Step 3: Cross multiply
    111,008.80x = 166,513.20 × 64,352.80
  4. Step 4: Simplify right side
    111,008.80x = 10,715,590,656.96
  5. Step 5: Solve for x
    x = 10,715,590,656.96/111,008.80
  6. Step 6: Final answer
    x = 96,529.20

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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.