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Finding the Fourth Proportional to 125,254.65, 187,900.20 and 40,994.40

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Solution

The fourth proportional to 125,254.65, 187,900.20 and 40,994.40 is: 61,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,254.65 : 187,900.20 = 40,994.40 : x
  2. Step 2: Convert to fraction form
    125,254.65/187,900.20 = 40,994.40/x
  3. Step 3: Cross multiply
    125,254.65x = 187,900.20 × 40,994.40
  4. Step 4: Simplify right side
    125,254.65x = 7,702,855,958.88
  5. Step 5: Solve for x
    x = 7,702,855,958.88/125,254.65
  6. Step 6: Final answer
    x = 61,497.56

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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.