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Finding the Fourth Proportional to 144,012.60, 215,846.10 and 73,855.80

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Solution

The fourth proportional to 144,012.60, 215,846.10 and 73,855.80 is: 110,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012.60 : 215,846.10 = 73,855.80 : x
  2. Step 2: Convert to fraction form
    144,012.60/215,846.10 = 73,855.80/x
  3. Step 3: Cross multiply
    144,012.60x = 215,846.10 × 73,855.80
  4. Step 4: Simplify right side
    144,012.60x = 15,941,486,392.38
  5. Step 5: Solve for x
    x = 15,941,486,392.38/144,012.60
  6. Step 6: Final answer
    x = 110,695.08

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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.