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Finding the Fourth Proportional to 111,215.08, 166,934.94 and 98,647.12

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Solution

The fourth proportional to 111,215.08, 166,934.94 and 98,647.12 is: 148,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,215.08 : 166,934.94 = 98,647.12 : x
  2. Step 2: Convert to fraction form
    111,215.08/166,934.94 = 98,647.12/x
  3. Step 3: Cross multiply
    111,215.08x = 166,934.94 × 98,647.12
  4. Step 4: Simplify right side
    111,215.08x = 16,467,651,058.37
  5. Step 5: Solve for x
    x = 16,467,651,058.37/111,215.08
  6. Step 6: Final answer
    x = 148,070.31

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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.