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Finding the Fourth Proportional to 215,762.88, 297,748.44 and 120,263.88

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Solution

The fourth proportional to 215,762.88, 297,748.44 and 120,263.88 is: 165,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,762.88 : 297,748.44 = 120,263.88 : x
  2. Step 2: Convert to fraction form
    215,762.88/297,748.44 = 120,263.88/x
  3. Step 3: Cross multiply
    215,762.88x = 297,748.44 × 120,263.88
  4. Step 4: Simplify right side
    215,762.88x = 35,808,382,658.35
  5. Step 5: Solve for x
    x = 35,808,382,658.35/215,762.88
  6. Step 6: Final answer
    x = 165,961.74

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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.