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Finding the Fourth Proportional to 140,663.88, 211,014.35 and 45,860.76

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Solution

The fourth proportional to 140,663.88, 211,014.35 and 45,860.76 is: 68,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,663.88 : 211,014.35 = 45,860.76 : x
  2. Step 2: Convert to fraction form
    140,663.88/211,014.35 = 45,860.76/x
  3. Step 3: Cross multiply
    140,663.88x = 211,014.35 × 45,860.76
  4. Step 4: Simplify right side
    140,663.88x = 9,677,278,232.60
  5. Step 5: Solve for x
    x = 9,677,278,232.60/140,663.88
  6. Step 6: Final answer
    x = 68,797.18

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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.