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Finding the Fourth Proportional to 199,425.72, 298,889.12 and 99,613.77

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Solution

The fourth proportional to 199,425.72, 298,889.12 and 99,613.77 is: 149,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,425.72 : 298,889.12 = 99,613.77 : x
  2. Step 2: Convert to fraction form
    199,425.72/298,889.12 = 99,613.77/x
  3. Step 3: Cross multiply
    199,425.72x = 298,889.12 × 99,613.77
  4. Step 4: Simplify right side
    199,425.72x = 29,773,472,055.18
  5. Step 5: Solve for x
    x = 29,773,472,055.18/199,425.72
  6. Step 6: Final answer
    x = 149,296.05

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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.