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Finding the Fourth Proportional to 125,473.44, 187,964.10 and 72,772.22

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Solution

The fourth proportional to 125,473.44, 187,964.10 and 72,772.22 is: 109,015.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,473.44 : 187,964.10 = 72,772.22 : x
  2. Step 2: Convert to fraction form
    125,473.44/187,964.10 = 72,772.22/x
  3. Step 3: Cross multiply
    125,473.44x = 187,964.10 × 72,772.22
  4. Step 4: Simplify right side
    125,473.44x = 13,678,564,837.30
  5. Step 5: Solve for x
    x = 13,678,564,837.30/125,473.44
  6. Step 6: Final answer
    x = 109,015.62

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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.