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Finding the Fourth Proportional to 248,187.32, 342,421.22 and 140,748.92

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Solution

The fourth proportional to 248,187.32, 342,421.22 and 140,748.92 is: 194,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,187.32 : 342,421.22 = 140,748.92 : x
  2. Step 2: Convert to fraction form
    248,187.32/342,421.22 = 140,748.92/x
  3. Step 3: Cross multiply
    248,187.32x = 342,421.22 × 140,748.92
  4. Step 4: Simplify right side
    248,187.32x = 48,195,416,900.08
  5. Step 5: Solve for x
    x = 48,195,416,900.08/248,187.32
  6. Step 6: Final answer
    x = 194,189.68

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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.