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Finding the Fourth Proportional to 111,651.52, 154,070.08 and 63,893.92

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Solution

The fourth proportional to 111,651.52, 154,070.08 and 63,893.92 is: 88,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,651.52 : 154,070.08 = 63,893.92 : x
  2. Step 2: Convert to fraction form
    111,651.52/154,070.08 = 63,893.92/x
  3. Step 3: Cross multiply
    111,651.52x = 154,070.08 × 63,893.92
  4. Step 4: Simplify right side
    111,651.52x = 9,844,141,365.91
  5. Step 5: Solve for x
    x = 9,844,141,365.91/111,651.52
  6. Step 6: Final answer
    x = 88,168.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.